72309880

素因数分解:

$2^3\times 5^1\times {\mathrm{1283}}^1\times {\mathrm{1409}}^1$

素因数の和:2703

約数の個数: 32

約数和(自身を含む): 162939600

約数和(自身を除く): 90629720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1283, 1409, 2566, 2818, 5132, 5636, 6415, 7045, 10264, 11272, 12830, 14090, 25660, 28180, 51320, 56360, 1807747, 3615494, 7230988, 9038735, 14461976, 18077470, 36154940, 72309880]

約数ペア:

[(1, 72309880), (2, 36154940), (4, 18077470), (5, 14461976), (8, 9038735), (10, 7230988), (20, 3615494), (40, 1807747), (1283, 56360), (1409, 51320), (2566, 28180), (2818, 25660), (5132, 14090), (5636, 12830), (6415, 11272), (7045, 10264)]