90789830

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{127873}}^1$

素因数の和:127951

約数の個数: 16

約数和(自身を含む): 165724704

約数和(自身を除く): 74934874

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 127873, 255746, 639365, 1278730, 9078983, 18157966, 45394915, 90789830]

約数ペア:

[(1, 90789830), (2, 45394915), (5, 18157966), (10, 9078983), (71, 1278730), (142, 639365), (355, 255746), (710, 127873)]