765924020

素因数分解:

$2^2\times 5^1\times {\mathrm{2131}}^1\times {\mathrm{17971}}^1$

素因数の和:20111

約数の個数: 24

約数和(自身を含む): 1609284768

約数和(自身を除く): 843360748

約数列:

[1, 2, 4, 5, 10, 20, 2131, 4262, 8524, 10655, 17971, 21310, 35942, 42620, 71884, 89855, 179710, 359420, 38296201, 76592402, 153184804, 191481005, 382962010, 765924020]

約数ペア:

[(1, 765924020), (2, 382962010), (4, 191481005), (5, 153184804), (10, 76592402), (20, 38296201), (2131, 359420), (4262, 179710), (8524, 89855), (10655, 71884), (17971, 42620), (21310, 35942)]