7218740

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^2\times {\mathrm{97}}^1$

素因数の和:228

約数の個数: 36

約数和(自身を含む): 15570828

約数和(自身を除く): 8352088

約数列:

[1, 2, 4, 5, 10, 20, 61, 97, 122, 194, 244, 305, 388, 485, 610, 970, 1220, 1940, 3721, 5917, 7442, 11834, 14884, 18605, 23668, 29585, 37210, 59170, 74420, 118340, 360937, 721874, 1443748, 1804685, 3609370, 7218740]

約数ペア:

[(1, 7218740), (2, 3609370), (4, 1804685), (5, 1443748), (10, 721874), (20, 360937), (61, 118340), (97, 74420), (122, 59170), (194, 37210), (244, 29585), (305, 23668), (388, 18605), (485, 14884), (610, 11834), (970, 7442), (1220, 5917), (1940, 3721)]