20171820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{11593}}^1$

素因数の和:11634

約数の個数: 48

約数和(自身を含む): 58433760

約数和(自身を除く): 38261940

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 11593, 23186, 34779, 46372, 57965, 69558, 115930, 139116, 173895, 231860, 336197, 347790, 672394, 695580, 1008591, 1344788, 1680985, 2017182, 3361970, 4034364, 5042955, 6723940, 10085910, 20171820]

約数ペア:

[(1, 20171820), (2, 10085910), (3, 6723940), (4, 5042955), (5, 4034364), (6, 3361970), (10, 2017182), (12, 1680985), (15, 1344788), (20, 1008591), (29, 695580), (30, 672394), (58, 347790), (60, 336197), (87, 231860), (116, 173895), (145, 139116), (174, 115930), (290, 69558), (348, 57965), (435, 46372), (580, 34779), (870, 23186), (1740, 11593)]