8201980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{13229}}^1$

素因数の和:13269

約数の個数: 24

約数和(自身を含む): 17781120

約数和(自身を除く): 9579140

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 13229, 26458, 52916, 66145, 132290, 264580, 410099, 820198, 1640396, 2050495, 4100990, 8201980]

約数ペア:

[(1, 8201980), (2, 4100990), (4, 2050495), (5, 1640396), (10, 820198), (20, 410099), (31, 264580), (62, 132290), (124, 66145), (155, 52916), (310, 26458), (620, 13229)]