20148479980

素因数分解:

$2^2\times 5^1\times {\mathrm{2141}}^1\times {\mathrm{470539}}^1$

素因数の和:472689

約数の個数: 24

約数和(自身を含む): 42331660560

約数和(自身を除く): 22183180580

約数列:

[1, 2, 4, 5, 10, 20, 2141, 4282, 8564, 10705, 21410, 42820, 470539, 941078, 1882156, 2352695, 4705390, 9410780, 1007423999, 2014847998, 4029695996, 5037119995, 10074239990, 20148479980]

約数ペア:

[(1, 20148479980), (2, 10074239990), (4, 5037119995), (5, 4029695996), (10, 2014847998), (20, 1007423999), (2141, 9410780), (4282, 4705390), (8564, 2352695), (10705, 1882156), (21410, 941078), (42820, 470539)]