28205121000

素因数分解:

$2^3\times 3^1\times 5^3\times 7^1\times {\mathrm{251}}^1\times {\mathrm{5351}}^1$

素因数の和:5633

約数の個数: 256

約数和(自身を含む): 100990955520

約数和(自身を除く): 72785834520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 125, 140, 150, 168, 175, 200, 210, 250, 251, 280, 300, 350, 375, 420, 500, 502, 525, 600, 700, 750, 753, 840, 875, 1000, 1004, 1050, 1255, 1400, 1500, 1506, 1750, 1757, 2008, 2100, 2510, 2625, 3000, 3012, 3500, 3514, 3765, 4200, 5020, 5250, 5271, 5351, 6024, 6275, 7000, 7028, 7530, 8785, 10040, 10500, 10542, 10702, 12550, 14056, 15060, 16053, 17570, 18825, 21000, 21084, 21404, 25100, 26355, 26755, 30120, 31375, 32106, 35140, 37457, 37650, 42168, 42808, 43925, 50200, 52710, 53510, 62750, 64212, 70280, 74914, 75300, 80265, 87850, 94125, 105420, 107020, 112371, 125500, 128424, 131775, 133775, 149828, 150600, 160530, 175700, 187285, 188250, 210840, 214040, 219625, 224742, 251000, 263550, 267550, 299656, 321060, 351400, 374570, 376500, 401325, 439250, 449484, 527100, 535100, 561855, 642120, 658875, 668875, 749140, 753000, 802650, 878500, 898968, 936425, 1054200, 1070200, 1123710, 1317750, 1337750, 1343101, 1498280, 1605300, 1757000, 1872850, 2006625, 2247420, 2635500, 2675500, 2686202, 2809275, 3210600, 3745700, 4013250, 4029303, 4494840, 4682125, 5271000, 5351000, 5372404, 5618550, 6715505, 7491400, 8026500, 8058606, 9364250, 9401707, 10744808, 11237100, 13431010, 14046375, 16053000, 16117212, 18728500, 18803414, 20146515, 22474200, 26862020, 28092750, 28205121, 32234424, 33577525, 37457000, 37606828, 40293030, 47008535, 53724040, 56185500, 56410242, 67155050, 75213656, 80586060, 94017070, 100732575, 112371000, 112820484, 134310100, 141025605, 161172120, 167887625, 188034140, 201465150, 225640968, 235042675, 268620200, 282051210, 335775250, 376068280, 402930300, 470085350, 503662875, 564102420, 671550500, 705128025, 805860600, 940170700, 1007325750, 1128204840, 1175213375, 1343101000, 1410256050, 1880341400, 2014651500, 2350426750, 2820512100, 3525640125, 4029303000, 4700853500, 5641024200, 7051280250, 9401707000, 14102560500, 28205121000]

約数ペア:

[(1, 28205121000), (2, 14102560500), (3, 9401707000), (4, 7051280250), (5, 5641024200), (6, 4700853500), (7, 4029303000), (8, 3525640125), (10, 2820512100), (12, 2350426750), (14, 2014651500), (15, 1880341400), (20, 1410256050), (21, 1343101000), (24, 1175213375), (25, 1128204840), (28, 1007325750), (30, 940170700), (35, 805860600), (40, 705128025), (42, 671550500), (50, 564102420), (56, 503662875), (60, 470085350), (70, 402930300), (75, 376068280), (84, 335775250), (100, 282051210), (105, 268620200), (120, 235042675), (125, 225640968), (140, 201465150), (150, 188034140), (168, 167887625), (175, 161172120), (200, 141025605), (210, 134310100), (250, 112820484), (251, 112371000), (280, 100732575), (300, 94017070), (350, 80586060), (375, 75213656), (420, 67155050), (500, 56410242), (502, 56185500), (525, 53724040), (600, 47008535), (700, 40293030), (750, 37606828), (753, 37457000), (840, 33577525), (875, 32234424), (1000, 28205121), (1004, 28092750), (1050, 26862020), (1255, 22474200), (1400, 20146515), (1500, 18803414), (1506, 18728500), (1750, 16117212), (1757, 16053000), (2008, 14046375), (2100, 13431010), (2510, 11237100), (2625, 10744808), (3000, 9401707), (3012, 9364250), (3500, 8058606), (3514, 8026500), (3765, 7491400), (4200, 6715505), (5020, 5618550), (5250, 5372404), (5271, 5351000), (5351, 5271000), (6024, 4682125), (6275, 4494840), (7000, 4029303), (7028, 4013250), (7530, 3745700), (8785, 3210600), (10040, 2809275), (10500, 2686202), (10542, 2675500), (10702, 2635500), (12550, 2247420), (14056, 2006625), (15060, 1872850), (16053, 1757000), (17570, 1605300), (18825, 1498280), (21000, 1343101), (21084, 1337750), (21404, 1317750), (25100, 1123710), (26355, 1070200), (26755, 1054200), (30120, 936425), (31375, 898968), (32106, 878500), (35140, 802650), (37457, 753000), (37650, 749140), (42168, 668875), (42808, 658875), (43925, 642120), (50200, 561855), (52710, 535100), (53510, 527100), (62750, 449484), (64212, 439250), (70280, 401325), (74914, 376500), (75300, 374570), (80265, 351400), (87850, 321060), (94125, 299656), (105420, 267550), (107020, 263550), (112371, 251000), (125500, 224742), (128424, 219625), (131775, 214040), (133775, 210840), (149828, 188250), (150600, 187285), (160530, 175700)]