641210080

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{283}}^1$

素因数の和:346

約数の個数: 216

約数和(自身を含む): 1878552648

約数和(自身を除く): 1237342568

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 32, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 160, 170, 196, 224, 238, 245, 272, 280, 283, 289, 340, 392, 476, 490, 544, 560, 566, 578, 595, 680, 784, 833, 952, 980, 1120, 1132, 1156, 1190, 1360, 1415, 1445, 1568, 1666, 1904, 1960, 1981, 2023, 2264, 2312, 2380, 2720, 2830, 2890, 3332, 3808, 3920, 3962, 4046, 4165, 4528, 4624, 4760, 4811, 5660, 5780, 6664, 7840, 7924, 8092, 8330, 9056, 9248, 9520, 9622, 9905, 10115, 11320, 11560, 13328, 13867, 14161, 15848, 16184, 16660, 19040, 19244, 19810, 20230, 22640, 23120, 24055, 26656, 27734, 28322, 31696, 32368, 33320, 33677, 38488, 39620, 40460, 45280, 46240, 48110, 55468, 56644, 63392, 64736, 66640, 67354, 69335, 70805, 76976, 79240, 80920, 81787, 96220, 110936, 113288, 133280, 134708, 138670, 141610, 153952, 158480, 161840, 163574, 168385, 192440, 221872, 226576, 235739, 269416, 277340, 283220, 316960, 323680, 327148, 336770, 384880, 408935, 443744, 453152, 471478, 538832, 554680, 566440, 572509, 654296, 673540, 769760, 817870, 942956, 1077664, 1109360, 1132880, 1145018, 1178695, 1308592, 1347080, 1635740, 1885912, 2218720, 2265760, 2290036, 2357390, 2617184, 2694160, 2862545, 3271480, 3771824, 4007563, 4580072, 4714780, 5388320, 5725090, 6542960, 7543648, 8015126, 9160144, 9429560, 11450180, 13085920, 16030252, 18320288, 18859120, 20037815, 22900360, 32060504, 37718240, 40075630, 45800720, 64121008, 80151260, 91601440, 128242016, 160302520, 320605040, 641210080]

約数ペア:

[(1, 641210080), (2, 320605040), (4, 160302520), (5, 128242016), (7, 91601440), (8, 80151260), (10, 64121008), (14, 45800720), (16, 40075630), (17, 37718240), (20, 32060504), (28, 22900360), (32, 20037815), (34, 18859120), (35, 18320288), (40, 16030252), (49, 13085920), (56, 11450180), (68, 9429560), (70, 9160144), (80, 8015126), (85, 7543648), (98, 6542960), (112, 5725090), (119, 5388320), (136, 4714780), (140, 4580072), (160, 4007563), (170, 3771824), (196, 3271480), (224, 2862545), (238, 2694160), (245, 2617184), (272, 2357390), (280, 2290036), (283, 2265760), (289, 2218720), (340, 1885912), (392, 1635740), (476, 1347080), (490, 1308592), (544, 1178695), (560, 1145018), (566, 1132880), (578, 1109360), (595, 1077664), (680, 942956), (784, 817870), (833, 769760), (952, 673540), (980, 654296), (1120, 572509), (1132, 566440), (1156, 554680), (1190, 538832), (1360, 471478), (1415, 453152), (1445, 443744), (1568, 408935), (1666, 384880), (1904, 336770), (1960, 327148), (1981, 323680), (2023, 316960), (2264, 283220), (2312, 277340), (2380, 269416), (2720, 235739), (2830, 226576), (2890, 221872), (3332, 192440), (3808, 168385), (3920, 163574), (3962, 161840), (4046, 158480), (4165, 153952), (4528, 141610), (4624, 138670), (4760, 134708), (4811, 133280), (5660, 113288), (5780, 110936), (6664, 96220), (7840, 81787), (7924, 80920), (8092, 79240), (8330, 76976), (9056, 70805), (9248, 69335), (9520, 67354), (9622, 66640), (9905, 64736), (10115, 63392), (11320, 56644), (11560, 55468), (13328, 48110), (13867, 46240), (14161, 45280), (15848, 40460), (16184, 39620), (16660, 38488), (19040, 33677), (19244, 33320), (19810, 32368), (20230, 31696), (22640, 28322), (23120, 27734), (24055, 26656)]