20862180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115901}}^1$

素因数の和:115916

約数の個数: 36

約数和(自身を含む): 63282492

約数和(自身を除く): 42420312

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115901, 231802, 347703, 463604, 579505, 695406, 1043109, 1159010, 1390812, 1738515, 2086218, 2318020, 3477030, 4172436, 5215545, 6954060, 10431090, 20862180]

約数ペア:

[(1, 20862180), (2, 10431090), (3, 6954060), (4, 5215545), (5, 4172436), (6, 3477030), (9, 2318020), (10, 2086218), (12, 1738515), (15, 1390812), (18, 1159010), (20, 1043109), (30, 695406), (36, 579505), (45, 463604), (60, 347703), (90, 231802), (180, 115901)]