620639390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{1266611}}^1$

素因数の和:1266632

約数の個数: 24

約数和(自身を含む): 1299543912

約数和(自身を除く): 678904522

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 1266611, 2533222, 6333055, 8866277, 12666110, 17732554, 44331385, 62063939, 88662770, 124127878, 310319695, 620639390]

約数ペア:

[(1, 620639390), (2, 310319695), (5, 124127878), (7, 88662770), (10, 62063939), (14, 44331385), (35, 17732554), (49, 12666110), (70, 8866277), (98, 6333055), (245, 2533222), (490, 1266611)]