642419360

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:247

約数の個数: 192

約数和(自身を含む): 1728324864

約数和(自身を除く): 1085905504

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 53, 55, 71, 80, 88, 97, 106, 110, 142, 160, 176, 194, 212, 220, 265, 284, 352, 355, 388, 424, 440, 485, 530, 568, 583, 710, 776, 781, 848, 880, 970, 1060, 1067, 1136, 1166, 1420, 1552, 1562, 1696, 1760, 1940, 2120, 2134, 2272, 2332, 2840, 2915, 3104, 3124, 3763, 3880, 3905, 4240, 4268, 4664, 5141, 5335, 5680, 5830, 6248, 6887, 7526, 7760, 7810, 8480, 8536, 9328, 10282, 10670, 11360, 11660, 12496, 13774, 15052, 15520, 15620, 17072, 18656, 18815, 20564, 21340, 23320, 24992, 25705, 27548, 30104, 31240, 34144, 34435, 37630, 41128, 41393, 42680, 46640, 51410, 55096, 56551, 60208, 62480, 68870, 75260, 75757, 82256, 82786, 85360, 93280, 102820, 110192, 113102, 120416, 124960, 137740, 150520, 151514, 164512, 165572, 170720, 205640, 206965, 220384, 226204, 275480, 282755, 301040, 303028, 331144, 365011, 378785, 411280, 413930, 452408, 550960, 565510, 602080, 606056, 662288, 730022, 757570, 822560, 827860, 904816, 1101920, 1131020, 1212112, 1324576, 1460044, 1515140, 1655720, 1809632, 1825055, 2262040, 2424224, 2920088, 3030280, 3311440, 3650110, 4015121, 4524080, 5840176, 6060560, 6622880, 7300220, 8030242, 9048160, 11680352, 12121120, 14600440, 16060484, 20075605, 29200880, 32120968, 40151210, 58401760, 64241936, 80302420, 128483872, 160604840, 321209680, 642419360]

約数ペア:

[(1, 642419360), (2, 321209680), (4, 160604840), (5, 128483872), (8, 80302420), (10, 64241936), (11, 58401760), (16, 40151210), (20, 32120968), (22, 29200880), (32, 20075605), (40, 16060484), (44, 14600440), (53, 12121120), (55, 11680352), (71, 9048160), (80, 8030242), (88, 7300220), (97, 6622880), (106, 6060560), (110, 5840176), (142, 4524080), (160, 4015121), (176, 3650110), (194, 3311440), (212, 3030280), (220, 2920088), (265, 2424224), (284, 2262040), (352, 1825055), (355, 1809632), (388, 1655720), (424, 1515140), (440, 1460044), (485, 1324576), (530, 1212112), (568, 1131020), (583, 1101920), (710, 904816), (776, 827860), (781, 822560), (848, 757570), (880, 730022), (970, 662288), (1060, 606056), (1067, 602080), (1136, 565510), (1166, 550960), (1420, 452408), (1552, 413930), (1562, 411280), (1696, 378785), (1760, 365011), (1940, 331144), (2120, 303028), (2134, 301040), (2272, 282755), (2332, 275480), (2840, 226204), (2915, 220384), (3104, 206965), (3124, 205640), (3763, 170720), (3880, 165572), (3905, 164512), (4240, 151514), (4268, 150520), (4664, 137740), (5141, 124960), (5335, 120416), (5680, 113102), (5830, 110192), (6248, 102820), (6887, 93280), (7526, 85360), (7760, 82786), (7810, 82256), (8480, 75757), (8536, 75260), (9328, 68870), (10282, 62480), (10670, 60208), (11360, 56551), (11660, 55096), (12496, 51410), (13774, 46640), (15052, 42680), (15520, 41393), (15620, 41128), (17072, 37630), (18656, 34435), (18815, 34144), (20564, 31240), (21340, 30104), (23320, 27548), (24992, 25705)]