87969980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{628357}}^1$

素因数の和:628373

約数の個数: 24

約数和(自身を含む): 211128288

約数和(自身を除く): 123158308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 628357, 1256714, 2513428, 3141785, 4398499, 6283570, 8796998, 12567140, 17593996, 21992495, 43984990, 87969980]

約数ペア:

[(1, 87969980), (2, 43984990), (4, 21992495), (5, 17593996), (7, 12567140), (10, 8796998), (14, 6283570), (20, 4398499), (28, 3141785), (35, 2513428), (70, 1256714), (140, 628357)]