66139220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{67489}}^1$

素因数の和:67512

約数の個数: 36

約数和(自身を含む): 161571060

約数和(自身を除く): 95431840

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 67489, 134978, 269956, 337445, 472423, 674890, 944846, 1349780, 1889692, 2362115, 3306961, 4724230, 6613922, 9448460, 13227844, 16534805, 33069610, 66139220]

約数ペア:

[(1, 66139220), (2, 33069610), (4, 16534805), (5, 13227844), (7, 9448460), (10, 6613922), (14, 4724230), (20, 3306961), (28, 2362115), (35, 1889692), (49, 1349780), (70, 944846), (98, 674890), (140, 472423), (196, 337445), (245, 269956), (490, 134978), (980, 67489)]