320605040

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{17}}^2\times {\mathrm{283}}^1$

素因数の和:344

約数の個数: 180

約数和(自身を含む): 924367176

約数和(自身を除く): 603762136

約数列:

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

約数ペア:

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