131585680

素因数分解:

$2^4\times 5^1\times {\mathrm{557}}^1\times {\mathrm{2953}}^1$

素因数の和:3523

約数の個数: 40

約数和(自身を含む): 306589752

約数和(自身を除く): 175004072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 557, 1114, 2228, 2785, 2953, 4456, 5570, 5906, 8912, 11140, 11812, 14765, 22280, 23624, 29530, 44560, 47248, 59060, 118120, 236240, 1644821, 3289642, 6579284, 8224105, 13158568, 16448210, 26317136, 32896420, 65792840, 131585680]

約数ペア:

[(1, 131585680), (2, 65792840), (4, 32896420), (5, 26317136), (8, 16448210), (10, 13158568), (16, 8224105), (20, 6579284), (40, 3289642), (80, 1644821), (557, 236240), (1114, 118120), (2228, 59060), (2785, 47248), (2953, 44560), (4456, 29530), (5570, 23624), (5906, 22280), (8912, 14765), (11140, 11812)]