72658420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{117191}}^1$

素因数の和:117231

約数の個数: 24

約数和(自身を含む): 157506048

約数和(自身を除く): 84847628

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 117191, 234382, 468764, 585955, 1171910, 2343820, 3632921, 7265842, 14531684, 18164605, 36329210, 72658420]

約数ペア:

[(1, 72658420), (2, 36329210), (4, 18164605), (5, 14531684), (10, 7265842), (20, 3632921), (31, 2343820), (62, 1171910), (124, 585955), (155, 468764), (310, 234382), (620, 117191)]