71984090

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{2789}}^1$

素因数の和:2914

約数の個数: 32

約数和(自身を含む): 135594000

約数和(自身を除く): 63609910

約数列:

[1, 2, 5, 10, 29, 58, 89, 145, 178, 290, 445, 890, 2581, 2789, 5162, 5578, 12905, 13945, 25810, 27890, 80881, 161762, 248221, 404405, 496442, 808810, 1241105, 2482210, 7198409, 14396818, 35992045, 71984090]

約数ペア:

[(1, 71984090), (2, 35992045), (5, 14396818), (10, 7198409), (29, 2482210), (58, 1241105), (89, 808810), (145, 496442), (178, 404405), (290, 248221), (445, 161762), (890, 80881), (2581, 27890), (2789, 25810), (5162, 13945), (5578, 12905)]