20007391390

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{1409}}^1\times {\mathrm{28979}}^1$

素因数の和:30409

約数の個数: 48

約数和(自身を含む): 41924206800

約数和(自身を除く): 21916815410

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 1409, 2818, 7045, 9863, 14090, 19726, 28979, 49315, 57958, 69041, 98630, 138082, 144895, 202853, 289790, 345205, 405706, 690410, 1014265, 1419971, 2028530, 2839942, 7099855, 14199710, 40831411, 81662822, 204157055, 285819877, 408314110, 571639754, 1429099385, 2000739139, 2858198770, 4001478278, 10003695695, 20007391390]

約数ペア:

[(1, 20007391390), (2, 10003695695), (5, 4001478278), (7, 2858198770), (10, 2000739139), (14, 1429099385), (35, 571639754), (49, 408314110), (70, 285819877), (98, 204157055), (245, 81662822), (490, 40831411), (1409, 14199710), (2818, 7099855), (7045, 2839942), (9863, 2028530), (14090, 1419971), (19726, 1014265), (28979, 690410), (49315, 405706), (57958, 345205), (69041, 289790), (98630, 202853), (138082, 144895)]