25920181775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{61667}}^1$

素因数の和:61760

約数の個数: 48

約数和(自身を含む): 36337745664

約数和(自身を除く): 10417563889

約数列:

[1, 5, 17, 23, 25, 43, 85, 115, 215, 391, 425, 575, 731, 989, 1075, 1955, 3655, 4945, 9775, 16813, 18275, 24725, 61667, 84065, 308335, 420325, 1048339, 1418341, 1541675, 2651681, 5241695, 7091705, 13258405, 24111797, 26208475, 35458525, 45078577, 60988663, 66292025, 120558985, 225392885, 304943315, 602794925, 1036807271, 1126964425, 1524716575, 5184036355, 25920181775]

約数ペア:

[(1, 25920181775), (5, 5184036355), (17, 1524716575), (23, 1126964425), (25, 1036807271), (43, 602794925), (85, 304943315), (115, 225392885), (215, 120558985), (391, 66292025), (425, 60988663), (575, 45078577), (731, 35458525), (989, 26208475), (1075, 24111797), (1955, 13258405), (3655, 7091705), (4945, 5241695), (9775, 2651681), (16813, 1541675), (18275, 1418341), (24725, 1048339), (61667, 420325), (84065, 308335)]