251017390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{148531}}^1$

素因数の和:148564

約数の個数: 24

約数和(自身を含む): 489264408

約数和(自身を除く): 238247018

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 148531, 297062, 742655, 1485310, 1930903, 3861806, 9654515, 19309030, 25101739, 50203478, 125508695, 251017390]

約数ペア:

[(1, 251017390), (2, 125508695), (5, 50203478), (10, 25101739), (13, 19309030), (26, 9654515), (65, 3861806), (130, 1930903), (169, 1485310), (338, 742655), (845, 297062), (1690, 148531)]