2129980

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{379}}^1$

素因数の和:669

約数の個数: 24

約数和(自身を含む): 4500720

約数和(自身を除く): 2370740

約数列:

[1, 2, 4, 5, 10, 20, 281, 379, 562, 758, 1124, 1405, 1516, 1895, 2810, 3790, 5620, 7580, 106499, 212998, 425996, 532495, 1064990, 2129980]

約数ペア:

[(1, 2129980), (2, 1064990), (4, 532495), (5, 425996), (10, 212998), (20, 106499), (281, 7580), (379, 5620), (562, 3790), (758, 2810), (1124, 1895), (1405, 1516)]