406240

素因数分解:

$2^5\times 5^1\times {\mathrm{2539}}^1$

素因数の和:2554

約数の個数: 24

約数和(自身を含む): 960120

約数和(自身を除く): 553880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 2539, 5078, 10156, 12695, 20312, 25390, 40624, 50780, 81248, 101560, 203120, 406240]

約数ペア:

[(1, 406240), (2, 203120), (4, 101560), (5, 81248), (8, 50780), (10, 40624), (16, 25390), (20, 20312), (32, 12695), (40, 10156), (80, 5078), (160, 2539)]