19628699375

素因数分解:

$5^4\times {\mathrm{17}}^2\times {\mathrm{271}}^1\times {\mathrm{401}}^1$

素因数の和:726

約数の個数: 60

約数和(自身を含む): 26217082848

約数和(自身を除く): 6588383473

約数列:

[1, 5, 17, 25, 85, 125, 271, 289, 401, 425, 625, 1355, 1445, 2005, 2125, 4607, 6775, 6817, 7225, 10025, 10625, 23035, 33875, 34085, 36125, 50125, 78319, 108671, 115175, 115889, 169375, 170425, 180625, 250625, 391595, 543355, 575875, 579445, 852125, 1847407, 1957975, 2716775, 2879375, 2897225, 4260625, 9237035, 9789875, 13583875, 14486125, 31405919, 46185175, 48949375, 67919375, 72430625, 157029595, 230925875, 785147975, 1154629375, 3925739875, 19628699375]

約数ペア:

[(1, 19628699375), (5, 3925739875), (17, 1154629375), (25, 785147975), (85, 230925875), (125, 157029595), (271, 72430625), (289, 67919375), (401, 48949375), (425, 46185175), (625, 31405919), (1355, 14486125), (1445, 13583875), (2005, 9789875), (2125, 9237035), (4607, 4260625), (6775, 2897225), (6817, 2879375), (7225, 2716775), (10025, 1957975), (10625, 1847407), (23035, 852125), (33875, 579445), (34085, 575875), (36125, 543355), (50125, 391595), (78319, 250625), (108671, 180625), (115175, 170425), (115889, 169375)]