72142985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 95219712

約数和(自身を除く): 23076727

約数列:

[1, 5, 17, 41, 85, 127, 163, 205, 635, 697, 815, 2159, 2771, 3485, 5207, 6683, 10795, 13855, 20701, 26035, 33415, 88519, 103505, 113611, 351917, 442595, 568055, 848741, 1759585, 4243705, 14428597, 72142985]

約数ペア:

[(1, 72142985), (5, 14428597), (17, 4243705), (41, 1759585), (85, 848741), (127, 568055), (163, 442595), (205, 351917), (635, 113611), (697, 103505), (815, 88519), (2159, 33415), (2771, 26035), (3485, 20701), (5207, 13855), (6683, 10795)]