399099905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{70079}}^1$

素因数の和:70168

約数の個数: 16

約数和(自身を含む): 514667520

約数和(自身を除く): 115567615

約数列:

[1, 5, 17, 67, 85, 335, 1139, 5695, 70079, 350395, 1191343, 4695293, 5956715, 23476465, 79819981, 399099905]

約数ペア:

[(1, 399099905), (5, 79819981), (17, 23476465), (67, 5956715), (85, 4695293), (335, 1191343), (1139, 350395), (5695, 70079)]