20145000

素因数分解:

$2^3\times 3^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{79}}^1$

素因数の和:125

約数の個数: 160

約数和(自身を含む): 67478400

約数和(自身を除く): 47333400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 25, 30, 34, 40, 50, 51, 60, 68, 75, 79, 85, 100, 102, 120, 125, 136, 150, 158, 170, 200, 204, 237, 250, 255, 300, 316, 340, 375, 395, 408, 425, 474, 500, 510, 600, 625, 632, 680, 750, 790, 850, 948, 1000, 1020, 1185, 1250, 1275, 1343, 1500, 1580, 1700, 1875, 1896, 1975, 2040, 2125, 2370, 2500, 2550, 2686, 3000, 3160, 3400, 3750, 3950, 4029, 4250, 4740, 5000, 5100, 5372, 5925, 6375, 6715, 7500, 7900, 8058, 8500, 9480, 9875, 10200, 10625, 10744, 11850, 12750, 13430, 15000, 15800, 16116, 17000, 19750, 20145, 21250, 23700, 25500, 26860, 29625, 31875, 32232, 33575, 39500, 40290, 42500, 47400, 49375, 51000, 53720, 59250, 63750, 67150, 79000, 80580, 85000, 98750, 100725, 118500, 127500, 134300, 148125, 161160, 167875, 197500, 201450, 237000, 255000, 268600, 296250, 335750, 395000, 402900, 503625, 592500, 671500, 805800, 839375, 1007250, 1185000, 1343000, 1678750, 2014500, 2518125, 3357500, 4029000, 5036250, 6715000, 10072500, 20145000]

約数ペア:

[(1, 20145000), (2, 10072500), (3, 6715000), (4, 5036250), (5, 4029000), (6, 3357500), (8, 2518125), (10, 2014500), (12, 1678750), (15, 1343000), (17, 1185000), (20, 1007250), (24, 839375), (25, 805800), (30, 671500), (34, 592500), (40, 503625), (50, 402900), (51, 395000), (60, 335750), (68, 296250), (75, 268600), (79, 255000), (85, 237000), (100, 201450), (102, 197500), (120, 167875), (125, 161160), (136, 148125), (150, 134300), (158, 127500), (170, 118500), (200, 100725), (204, 98750), (237, 85000), (250, 80580), (255, 79000), (300, 67150), (316, 63750), (340, 59250), (375, 53720), (395, 51000), (408, 49375), (425, 47400), (474, 42500), (500, 40290), (510, 39500), (600, 33575), (625, 32232), (632, 31875), (680, 29625), (750, 26860), (790, 25500), (850, 23700), (948, 21250), (1000, 20145), (1020, 19750), (1185, 17000), (1250, 16116), (1275, 15800), (1343, 15000), (1500, 13430), (1580, 12750), (1700, 11850), (1875, 10744), (1896, 10625), (1975, 10200), (2040, 9875), (2125, 9480), (2370, 8500), (2500, 8058), (2550, 7900), (2686, 7500), (3000, 6715), (3160, 6375), (3400, 5925), (3750, 5372), (3950, 5100), (4029, 5000), (4250, 4740)]