156905560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{1123}}^1$

素因数の和:1640

約数の個数: 64

約数和(自身を含む): 404640000

約数和(自身を除く): 247734440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 499, 998, 1123, 1996, 2246, 2495, 3493, 3992, 4492, 4990, 5615, 6986, 7861, 8984, 9980, 11230, 13972, 15722, 17465, 19960, 22460, 27944, 31444, 34930, 39305, 44920, 62888, 69860, 78610, 139720, 157220, 314440, 560377, 1120754, 2241508, 2801885, 3922639, 4483016, 5603770, 7845278, 11207540, 15690556, 19613195, 22415080, 31381112, 39226390, 78452780, 156905560]

約数ペア:

[(1, 156905560), (2, 78452780), (4, 39226390), (5, 31381112), (7, 22415080), (8, 19613195), (10, 15690556), (14, 11207540), (20, 7845278), (28, 5603770), (35, 4483016), (40, 3922639), (56, 2801885), (70, 2241508), (140, 1120754), (280, 560377), (499, 314440), (998, 157220), (1123, 139720), (1996, 78610), (2246, 69860), (2495, 62888), (3493, 44920), (3992, 39305), (4492, 34930), (4990, 31444), (5615, 27944), (6986, 22460), (7861, 19960), (8984, 17465), (9980, 15722), (11230, 13972)]