128406720

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{10289}}^1$

素因数の和:10322

約数の個数: 112

約数和(自身を含む): 439094880

約数和(自身を除く): 310688160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 156, 160, 192, 195, 208, 240, 260, 312, 320, 390, 416, 480, 520, 624, 780, 832, 960, 1040, 1248, 1560, 2080, 2496, 3120, 4160, 6240, 10289, 12480, 20578, 30867, 41156, 51445, 61734, 82312, 102890, 123468, 133757, 154335, 164624, 205780, 246936, 267514, 308670, 329248, 401271, 411560, 493872, 535028, 617340, 658496, 668785, 802542, 823120, 987744, 1070056, 1234680, 1337570, 1605084, 1646240, 1975488, 2006355, 2140112, 2469360, 2675140, 3210168, 3292480, 4012710, 4280224, 4938720, 5350280, 6420336, 8025420, 8560448, 9877440, 10700560, 12840672, 16050840, 21401120, 25681344, 32101680, 42802240, 64203360, 128406720]

約数ペア:

[(1, 128406720), (2, 64203360), (3, 42802240), (4, 32101680), (5, 25681344), (6, 21401120), (8, 16050840), (10, 12840672), (12, 10700560), (13, 9877440), (15, 8560448), (16, 8025420), (20, 6420336), (24, 5350280), (26, 4938720), (30, 4280224), (32, 4012710), (39, 3292480), (40, 3210168), (48, 2675140), (52, 2469360), (60, 2140112), (64, 2006355), (65, 1975488), (78, 1646240), (80, 1605084), (96, 1337570), (104, 1234680), (120, 1070056), (130, 987744), (156, 823120), (160, 802542), (192, 668785), (195, 658496), (208, 617340), (240, 535028), (260, 493872), (312, 411560), (320, 401271), (390, 329248), (416, 308670), (480, 267514), (520, 246936), (624, 205780), (780, 164624), (832, 154335), (960, 133757), (1040, 123468), (1248, 102890), (1560, 82312), (2080, 61734), (2496, 51445), (3120, 41156), (4160, 30867), (6240, 20578), (10289, 12480)]