778811625

素因数分解:

$3^3\times 5^3\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:253

約数の個数: 128

約数和(自身を含む): 1533542400

約数和(自身を除く): 754730775

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 79, 115, 125, 127, 135, 207, 225, 237, 345, 375, 381, 395, 575, 621, 635, 675, 711, 1035, 1125, 1143, 1185, 1725, 1817, 1905, 1975, 2133, 2875, 2921, 3105, 3175, 3375, 3429, 3555, 5175, 5451, 5715, 5925, 8625, 8763, 9085, 9525, 9875, 10033, 10665, 14605, 15525, 15875, 16353, 17145, 17775, 25875, 26289, 27255, 28575, 29625, 30099, 43815, 45425, 47625, 49059, 50165, 53325, 73025, 77625, 78867, 81765, 85725, 88875, 90297, 131445, 136275, 142875, 150495, 219075, 227125, 230759, 245295, 250825, 266625, 270891, 365125, 394335, 408825, 428625, 451485, 657225, 681375, 692277, 752475, 1095375, 1153795, 1226475, 1254125, 1354455, 1971675, 2044125, 2076831, 2257425, 3286125, 3461385, 3762375, 5768975, 6132375, 6230493, 6772275, 9858375, 10384155, 11287125, 17306925, 28844875, 31152465, 33861375, 51920775, 86534625, 155762325, 259603875, 778811625]

約数ペア:

[(1, 778811625), (3, 259603875), (5, 155762325), (9, 86534625), (15, 51920775), (23, 33861375), (25, 31152465), (27, 28844875), (45, 17306925), (69, 11287125), (75, 10384155), (79, 9858375), (115, 6772275), (125, 6230493), (127, 6132375), (135, 5768975), (207, 3762375), (225, 3461385), (237, 3286125), (345, 2257425), (375, 2076831), (381, 2044125), (395, 1971675), (575, 1354455), (621, 1254125), (635, 1226475), (675, 1153795), (711, 1095375), (1035, 752475), (1125, 692277), (1143, 681375), (1185, 657225), (1725, 451485), (1817, 428625), (1905, 408825), (1975, 394335), (2133, 365125), (2875, 270891), (2921, 266625), (3105, 250825), (3175, 245295), (3375, 230759), (3429, 227125), (3555, 219075), (5175, 150495), (5451, 142875), (5715, 136275), (5925, 131445), (8625, 90297), (8763, 88875), (9085, 85725), (9525, 81765), (9875, 78867), (10033, 77625), (10665, 73025), (14605, 53325), (15525, 50165), (15875, 49059), (16353, 47625), (17145, 45425), (17775, 43815), (25875, 30099), (26289, 29625), (27255, 28575)]