408026480

素因数分解:

$2^4\times 5^1\times {\mathrm{5100331}}^1$

素因数の和:5100344

約数の個数: 20

約数和(自身を含む): 948661752

約数和(自身を除く): 540635272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5100331, 10200662, 20401324, 25501655, 40802648, 51003310, 81605296, 102006620, 204013240, 408026480]

約数ペア:

[(1, 408026480), (2, 204013240), (4, 102006620), (5, 81605296), (8, 51003310), (10, 40802648), (16, 25501655), (20, 20401324), (40, 10200662), (80, 5100331)]