155909480

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{20407}}^1$

素因数の和:20609

約数の個数: 32

約数和(自身を含む): 352650240

約数和(自身を除く): 196740760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 20407, 40814, 81628, 102035, 163256, 204070, 408140, 816280, 3897737, 7795474, 15590948, 19488685, 31181896, 38977370, 77954740, 155909480]

約数ペア:

[(1, 155909480), (2, 77954740), (4, 38977370), (5, 31181896), (8, 19488685), (10, 15590948), (20, 7795474), (40, 3897737), (191, 816280), (382, 408140), (764, 204070), (955, 163256), (1528, 102035), (1910, 81628), (3820, 40814), (7640, 20407)]