18845880385

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1\times {\mathrm{8171}}^1$

素因数の和:8409

約数の個数: 32

約数和(自身を含む): 23511824640

約数和(自身を除く): 4665944255

約数列:

[1, 5, 71, 73, 89, 355, 365, 445, 5183, 6319, 6497, 8171, 25915, 31595, 32485, 40855, 461287, 580141, 596483, 727219, 2306435, 2900705, 2982415, 3636095, 42350293, 51632549, 53086987, 211751465, 258162745, 265434935, 3769176077, 18845880385]

約数ペア:

[(1, 18845880385), (5, 3769176077), (71, 265434935), (73, 258162745), (89, 211751465), (355, 53086987), (365, 51632549), (445, 42350293), (5183, 3636095), (6319, 2982415), (6497, 2900705), (8171, 2306435), (25915, 727219), (31595, 596483), (32485, 580141), (40855, 461287)]