42581980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{43451}}^1$

素因数の和:43474

約数の個数: 36

約数和(自身を含む): 104024088

約数和(自身を除く): 61442108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 43451, 86902, 173804, 217255, 304157, 434510, 608314, 869020, 1216628, 1520785, 2129099, 3041570, 4258198, 6083140, 8516396, 10645495, 21290990, 42581980]

約数ペア:

[(1, 42581980), (2, 21290990), (4, 10645495), (5, 8516396), (7, 6083140), (10, 4258198), (14, 3041570), (20, 2129099), (28, 1520785), (35, 1216628), (49, 869020), (70, 608314), (98, 434510), (140, 304157), (196, 217255), (245, 173804), (490, 86902), (980, 43451)]