201729680

素因数分解:

$2^4\times 5^1\times {\mathrm{2521621}}^1$

素因数の和:2521634

約数の個数: 20

約数和(自身を含む): 469021692

約数和(自身を除く): 267292012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2521621, 5043242, 10086484, 12608105, 20172968, 25216210, 40345936, 50432420, 100864840, 201729680]

約数ペア:

[(1, 201729680), (2, 100864840), (4, 50432420), (5, 40345936), (8, 25216210), (10, 20172968), (16, 12608105), (20, 10086484), (40, 5043242), (80, 2521621)]