210804580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1505747}}^1$

素因数の和:1505763

約数の個数: 24

約数和(自身を含む): 505931328

約数和(自身を除く): 295126748

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1505747, 3011494, 6022988, 7528735, 10540229, 15057470, 21080458, 30114940, 42160916, 52701145, 105402290, 210804580]

約数ペア:

[(1, 210804580), (2, 105402290), (4, 52701145), (5, 42160916), (7, 30114940), (10, 21080458), (14, 15057470), (20, 10540229), (28, 7528735), (35, 6022988), (70, 3011494), (140, 1505747)]