180984820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{3517}}^1$

素因数の和:3640

約数の個数: 48

約数和(自身を含む): 397168128

約数和(自身を除く): 216183308

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 83, 124, 155, 166, 310, 332, 415, 620, 830, 1660, 2573, 3517, 5146, 7034, 10292, 12865, 14068, 17585, 25730, 35170, 51460, 70340, 109027, 218054, 291911, 436108, 545135, 583822, 1090270, 1167644, 1459555, 2180540, 2919110, 5838220, 9049241, 18098482, 36196964, 45246205, 90492410, 180984820]

約数ペア:

[(1, 180984820), (2, 90492410), (4, 45246205), (5, 36196964), (10, 18098482), (20, 9049241), (31, 5838220), (62, 2919110), (83, 2180540), (124, 1459555), (155, 1167644), (166, 1090270), (310, 583822), (332, 545135), (415, 436108), (620, 291911), (830, 218054), (1660, 109027), (2573, 70340), (3517, 51460), (5146, 35170), (7034, 25730), (10292, 17585), (12865, 14068)]