18116868125

素因数分解:

$5^4\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{5279}}^1$

素因数の和:5352

約数の個数: 60

約数和(自身を含む): 25319395200

約数和(自身を除く): 7202527075

約数列:

[1, 5, 17, 19, 25, 85, 95, 125, 289, 323, 425, 475, 625, 1445, 1615, 2125, 2375, 5279, 5491, 7225, 8075, 10625, 11875, 26395, 27455, 36125, 40375, 89743, 100301, 131975, 137275, 180625, 201875, 448715, 501505, 659875, 686375, 1525631, 1705117, 2243575, 2507525, 3299375, 3431875, 7628155, 8525585, 11217875, 12537625, 28986989, 38140775, 42627925, 56089375, 62688125, 144934945, 190703875, 213139625, 724674725, 953519375, 1065698125, 3623373625, 18116868125]

約数ペア:

[(1, 18116868125), (5, 3623373625), (17, 1065698125), (19, 953519375), (25, 724674725), (85, 213139625), (95, 190703875), (125, 144934945), (289, 62688125), (323, 56089375), (425, 42627925), (475, 38140775), (625, 28986989), (1445, 12537625), (1615, 11217875), (2125, 8525585), (2375, 7628155), (5279, 3431875), (5491, 3299375), (7225, 2507525), (8075, 2243575), (10625, 1705117), (11875, 1525631), (26395, 686375), (27455, 659875), (36125, 501505), (40375, 448715), (89743, 201875), (100301, 180625), (131975, 137275)]