28706775

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{12347}}^1$

素因数の和:12391

約数の個数: 24

約数和(自身を含む): 48996864

約数和(自身を除く): 20290089

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 155, 465, 775, 2325, 12347, 37041, 61735, 185205, 308675, 382757, 926025, 1148271, 1913785, 5741355, 9568925, 28706775]

約数ペア:

[(1, 28706775), (3, 9568925), (5, 5741355), (15, 1913785), (25, 1148271), (31, 926025), (75, 382757), (93, 308675), (155, 185205), (465, 61735), (775, 37041), (2325, 12347)]