18486920

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{15937}}^1$

素因数の和:15977

約数の個数: 32

約数和(自身を含む): 43032600

約数和(自身を除く): 24545680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 15937, 31874, 63748, 79685, 127496, 159370, 318740, 462173, 637480, 924346, 1848692, 2310865, 3697384, 4621730, 9243460, 18486920]

約数ペア:

[(1, 18486920), (2, 9243460), (4, 4621730), (5, 3697384), (8, 2310865), (10, 1848692), (20, 924346), (29, 637480), (40, 462173), (58, 318740), (116, 159370), (145, 127496), (232, 79685), (290, 63748), (580, 31874), (1160, 15937)]