215765820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1198699}}^1$

素因数の和:1198714

約数の個数: 36

約数和(自身を含む): 654490200

約数和(自身を除く): 438724380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1198699, 2397398, 3596097, 4794796, 5993495, 7192194, 10788291, 11986990, 14384388, 17980485, 21576582, 23973980, 35960970, 43153164, 53941455, 71921940, 107882910, 215765820]

約数ペア:

[(1, 215765820), (2, 107882910), (3, 71921940), (4, 53941455), (5, 43153164), (6, 35960970), (9, 23973980), (10, 21576582), (12, 17980485), (15, 14384388), (18, 11986990), (20, 10788291), (30, 7192194), (36, 5993495), (45, 4794796), (60, 3596097), (90, 2397398), (180, 1198699)]