25207960

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{701}}^1$

素因数の和:772

約数の個数: 64

約数和(自身を含む): 60652800

約数和(自身を除く): 35444840

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 701, 899, 1160, 1240, 1402, 1798, 2804, 3505, 3596, 4495, 5608, 7010, 7192, 8990, 14020, 17980, 20329, 21731, 28040, 35960, 40658, 43462, 81316, 86924, 101645, 108655, 162632, 173848, 203290, 217310, 406580, 434620, 630199, 813160, 869240, 1260398, 2520796, 3150995, 5041592, 6301990, 12603980, 25207960]

約数ペア:

[(1, 25207960), (2, 12603980), (4, 6301990), (5, 5041592), (8, 3150995), (10, 2520796), (20, 1260398), (29, 869240), (31, 813160), (40, 630199), (58, 434620), (62, 406580), (116, 217310), (124, 203290), (145, 173848), (155, 162632), (232, 108655), (248, 101645), (290, 86924), (310, 81316), (580, 43462), (620, 40658), (701, 35960), (899, 28040), (1160, 21731), (1240, 20329), (1402, 17980), (1798, 14020), (2804, 8990), (3505, 7192), (3596, 7010), (4495, 5608)]