399989875

素因数分解:

$5^3\times {\mathrm{139}}^1\times {\mathrm{23021}}^1$

素因数の和:23175

約数の個数: 16

約数和(自身を含む): 502800480

約数和(自身を除く): 102810605

約数列:

[1, 5, 25, 125, 139, 695, 3475, 17375, 23021, 115105, 575525, 2877625, 3199919, 15999595, 79997975, 399989875]

約数ペア:

[(1, 399989875), (5, 79997975), (25, 15999595), (125, 3199919), (139, 2877625), (695, 575525), (3475, 115105), (17375, 23021)]