18451540

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^2\times {\mathrm{1097}}^1$

素因数の和:1164

約数の個数: 36

約数和(自身を含む): 40167036

約数和(自身を除く): 21715496

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 841, 1097, 1682, 2194, 3364, 4205, 4388, 5485, 8410, 10970, 16820, 21940, 31813, 63626, 127252, 159065, 318130, 636260, 922577, 1845154, 3690308, 4612885, 9225770, 18451540]

約数ペア:

[(1, 18451540), (2, 9225770), (4, 4612885), (5, 3690308), (10, 1845154), (20, 922577), (29, 636260), (58, 318130), (116, 159065), (145, 127252), (290, 63626), (580, 31813), (841, 21940), (1097, 16820), (1682, 10970), (2194, 8410), (3364, 5485), (4205, 4388)]