72106775

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{421}}^1$

素因数の和:492

約数の個数: 48

約数和(自身を含む): 105493248

約数和(自身を除く): 33386473

約数列:

[1, 5, 13, 17, 25, 31, 65, 85, 155, 221, 325, 403, 421, 425, 527, 775, 1105, 2015, 2105, 2635, 5473, 5525, 6851, 7157, 10075, 10525, 13051, 13175, 27365, 34255, 35785, 65255, 93041, 136825, 169663, 171275, 178925, 221867, 326275, 465205, 848315, 1109335, 2326025, 2884271, 4241575, 5546675, 14421355, 72106775]

約数ペア:

[(1, 72106775), (5, 14421355), (13, 5546675), (17, 4241575), (25, 2884271), (31, 2326025), (65, 1109335), (85, 848315), (155, 465205), (221, 326275), (325, 221867), (403, 178925), (421, 171275), (425, 169663), (527, 136825), (775, 93041), (1105, 65255), (2015, 35785), (2105, 34255), (2635, 27365), (5473, 13175), (5525, 13051), (6851, 10525), (7157, 10075)]