78764560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{283}}^1$

素因数の和:381

約数の個数: 120

約数和(自身を含む): 216789696

約数和(自身を除く): 138025136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 71, 80, 98, 112, 140, 142, 196, 245, 280, 283, 284, 355, 392, 490, 497, 560, 566, 568, 710, 784, 980, 994, 1132, 1136, 1415, 1420, 1960, 1981, 1988, 2264, 2485, 2830, 2840, 3479, 3920, 3962, 3976, 4528, 4970, 5660, 5680, 6958, 7924, 7952, 9905, 9940, 11320, 13867, 13916, 15848, 17395, 19810, 19880, 20093, 22640, 27734, 27832, 31696, 34790, 39620, 39760, 40186, 55468, 55664, 69335, 69580, 79240, 80372, 100465, 110936, 138670, 139160, 140651, 158480, 160744, 200930, 221872, 277340, 278320, 281302, 321488, 401860, 554680, 562604, 703255, 803720, 984557, 1109360, 1125208, 1406510, 1607440, 1969114, 2250416, 2813020, 3938228, 4922785, 5626040, 7876456, 9845570, 11252080, 15752912, 19691140, 39382280, 78764560]

約数ペア:

[(1, 78764560), (2, 39382280), (4, 19691140), (5, 15752912), (7, 11252080), (8, 9845570), (10, 7876456), (14, 5626040), (16, 4922785), (20, 3938228), (28, 2813020), (35, 2250416), (40, 1969114), (49, 1607440), (56, 1406510), (70, 1125208), (71, 1109360), (80, 984557), (98, 803720), (112, 703255), (140, 562604), (142, 554680), (196, 401860), (245, 321488), (280, 281302), (283, 278320), (284, 277340), (355, 221872), (392, 200930), (490, 160744), (497, 158480), (560, 140651), (566, 139160), (568, 138670), (710, 110936), (784, 100465), (980, 80372), (994, 79240), (1132, 69580), (1136, 69335), (1415, 55664), (1420, 55468), (1960, 40186), (1981, 39760), (1988, 39620), (2264, 34790), (2485, 31696), (2830, 27832), (2840, 27734), (3479, 22640), (3920, 20093), (3962, 19880), (3976, 19810), (4528, 17395), (4970, 15848), (5660, 13916), (5680, 13867), (6958, 11320), (7924, 9940), (7952, 9905)]