1371980

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{379}}^1$

素因数の和:569

約数の個数: 24

約数和(自身を含む): 2904720

約数和(自身を除く): 1532740

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 379, 724, 758, 905, 1516, 1810, 1895, 3620, 3790, 7580, 68599, 137198, 274396, 342995, 685990, 1371980]

約数ペア:

[(1, 1371980), (2, 685990), (4, 342995), (5, 274396), (10, 137198), (20, 68599), (181, 7580), (362, 3790), (379, 3620), (724, 1895), (758, 1810), (905, 1516)]