20161971375

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{6091}}^1$

素因数の和:6226

約数の個数: 128

約数和(自身を含む): 41724254208

約数和(自身を除く): 21562282833

約数列:

[1, 3, 5, 7, 13, 15, 21, 25, 35, 39, 65, 75, 91, 97, 105, 125, 175, 195, 273, 291, 325, 375, 455, 485, 525, 679, 875, 975, 1261, 1365, 1455, 1625, 2037, 2275, 2425, 2625, 3395, 3783, 4875, 6091, 6305, 6825, 7275, 8827, 10185, 11375, 12125, 16975, 18273, 18915, 26481, 30455, 31525, 34125, 36375, 42637, 44135, 50925, 79183, 84875, 91365, 94575, 127911, 132405, 152275, 157625, 213185, 220675, 237549, 254625, 395915, 456825, 472875, 554281, 590827, 639555, 662025, 761375, 1065925, 1103375, 1187745, 1662843, 1772481, 1979575, 2284125, 2771405, 2954135, 3197775, 3310125, 4135789, 5329625, 5938725, 7680751, 8314215, 8862405, 9897875, 12407367, 13857025, 14770675, 15988875, 20678945, 23042253, 29693625, 38403755, 41571075, 44312025, 53765257, 62036835, 69285125, 73853375, 103394725, 115211265, 161295771, 192018775, 207855375, 221560125, 268826285, 310184175, 516973625, 576056325, 806478855, 960093875, 1344131425, 1550920875, 2880281625, 4032394275, 6720657125, 20161971375]

約数ペア:

[(1, 20161971375), (3, 6720657125), (5, 4032394275), (7, 2880281625), (13, 1550920875), (15, 1344131425), (21, 960093875), (25, 806478855), (35, 576056325), (39, 516973625), (65, 310184175), (75, 268826285), (91, 221560125), (97, 207855375), (105, 192018775), (125, 161295771), (175, 115211265), (195, 103394725), (273, 73853375), (291, 69285125), (325, 62036835), (375, 53765257), (455, 44312025), (485, 41571075), (525, 38403755), (679, 29693625), (875, 23042253), (975, 20678945), (1261, 15988875), (1365, 14770675), (1455, 13857025), (1625, 12407367), (2037, 9897875), (2275, 8862405), (2425, 8314215), (2625, 7680751), (3395, 5938725), (3783, 5329625), (4875, 4135789), (6091, 3310125), (6305, 3197775), (6825, 2954135), (7275, 2771405), (8827, 2284125), (10185, 1979575), (11375, 1772481), (12125, 1662843), (16975, 1187745), (18273, 1103375), (18915, 1065925), (26481, 761375), (30455, 662025), (31525, 639555), (34125, 590827), (36375, 554281), (42637, 472875), (44135, 456825), (50925, 395915), (79183, 254625), (84875, 237549), (91365, 220675), (94575, 213185), (127911, 157625), (132405, 152275)]