400581855

素因数分解:

$3^8\times 5^1\times {\mathrm{12211}}^1$

素因数の和:12240

約数の個数: 36

約数和(自身を含む): 721069752

約数和(自身を除く): 320487897

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 729, 1215, 2187, 3645, 6561, 10935, 12211, 32805, 36633, 61055, 109899, 183165, 329697, 549495, 989091, 1648485, 2967273, 4945455, 8901819, 14836365, 26705457, 44509095, 80116371, 133527285, 400581855]

約数ペア:

[(1, 400581855), (3, 133527285), (5, 80116371), (9, 44509095), (15, 26705457), (27, 14836365), (45, 8901819), (81, 4945455), (135, 2967273), (243, 1648485), (405, 989091), (729, 549495), (1215, 329697), (2187, 183165), (3645, 109899), (6561, 61055), (10935, 36633), (12211, 32805)]