261528400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:210

約数の個数: 240

約数和(自身を含む): 779378688

約数和(自身を除く): 517850288

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 31, 35, 40, 46, 50, 56, 62, 70, 80, 92, 100, 112, 115, 124, 131, 140, 155, 161, 175, 184, 200, 217, 230, 248, 262, 280, 310, 322, 350, 368, 400, 434, 460, 496, 524, 560, 575, 620, 644, 655, 700, 713, 775, 805, 868, 917, 920, 1048, 1085, 1150, 1240, 1288, 1310, 1400, 1426, 1550, 1610, 1736, 1834, 1840, 2096, 2170, 2300, 2480, 2576, 2620, 2800, 2852, 3013, 3100, 3220, 3275, 3472, 3565, 3668, 4025, 4061, 4340, 4585, 4600, 4991, 5240, 5425, 5704, 6026, 6200, 6440, 6550, 7130, 7336, 8050, 8122, 8680, 9170, 9200, 9982, 10480, 10850, 11408, 12052, 12400, 12880, 13100, 14260, 14672, 15065, 16100, 16244, 17360, 17825, 18340, 19964, 20305, 21091, 21700, 22925, 24104, 24955, 26200, 28427, 28520, 30130, 32200, 32488, 35650, 36680, 39928, 40610, 42182, 43400, 45850, 48208, 49910, 52400, 56854, 57040, 60260, 64400, 64976, 71300, 73360, 75325, 79856, 81220, 84364, 86800, 91700, 93403, 99820, 101525, 105455, 113708, 120520, 124775, 142135, 142600, 150650, 162440, 168728, 183400, 186806, 199640, 203050, 210910, 227416, 241040, 249550, 284270, 285200, 301300, 324880, 337456, 366800, 373612, 399280, 406100, 421820, 454832, 467015, 499100, 527275, 568540, 602600, 653821, 710675, 747224, 812200, 843640, 934030, 998200, 1054550, 1137080, 1205200, 1307642, 1421350, 1494448, 1624400, 1687280, 1868060, 1996400, 2109100, 2274160, 2335075, 2615284, 2842700, 3269105, 3736120, 4218200, 4670150, 5230568, 5685400, 6538210, 7472240, 8436400, 9340300, 10461136, 11370800, 13076420, 16345525, 18680600, 26152840, 32691050, 37361200, 52305680, 65382100, 130764200, 261528400]

約数ペア:

[(1, 261528400), (2, 130764200), (4, 65382100), (5, 52305680), (7, 37361200), (8, 32691050), (10, 26152840), (14, 18680600), (16, 16345525), (20, 13076420), (23, 11370800), (25, 10461136), (28, 9340300), (31, 8436400), (35, 7472240), (40, 6538210), (46, 5685400), (50, 5230568), (56, 4670150), (62, 4218200), (70, 3736120), (80, 3269105), (92, 2842700), (100, 2615284), (112, 2335075), (115, 2274160), (124, 2109100), (131, 1996400), (140, 1868060), (155, 1687280), (161, 1624400), (175, 1494448), (184, 1421350), (200, 1307642), (217, 1205200), (230, 1137080), (248, 1054550), (262, 998200), (280, 934030), (310, 843640), (322, 812200), (350, 747224), (368, 710675), (400, 653821), (434, 602600), (460, 568540), (496, 527275), (524, 499100), (560, 467015), (575, 454832), (620, 421820), (644, 406100), (655, 399280), (700, 373612), (713, 366800), (775, 337456), (805, 324880), (868, 301300), (917, 285200), (920, 284270), (1048, 249550), (1085, 241040), (1150, 227416), (1240, 210910), (1288, 203050), (1310, 199640), (1400, 186806), (1426, 183400), (1550, 168728), (1610, 162440), (1736, 150650), (1834, 142600), (1840, 142135), (2096, 124775), (2170, 120520), (2300, 113708), (2480, 105455), (2576, 101525), (2620, 99820), (2800, 93403), (2852, 91700), (3013, 86800), (3100, 84364), (3220, 81220), (3275, 79856), (3472, 75325), (3565, 73360), (3668, 71300), (4025, 64976), (4061, 64400), (4340, 60260), (4585, 57040), (4600, 56854), (4991, 52400), (5240, 49910), (5425, 48208), (5704, 45850), (6026, 43400), (6200, 42182), (6440, 40610), (6550, 39928), (7130, 36680), (7336, 35650), (8050, 32488), (8122, 32200), (8680, 30130), (9170, 28520), (9200, 28427), (9982, 26200), (10480, 24955), (10850, 24104), (11408, 22925), (12052, 21700), (12400, 21091), (12880, 20305), (13100, 19964), (14260, 18340), (14672, 17825), (15065, 17360), (16100, 16244)]