1280491875

素因数分解:

$3^3\times 5^4\times {\mathrm{13}}^2\times {\mathrm{449}}^1$

素因数の和:504

約数の個数: 120

約数和(自身を含む): 2572614000

約数和(自身を除く): 1292122125

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 125, 135, 169, 195, 225, 325, 351, 375, 449, 507, 585, 625, 675, 845, 975, 1125, 1347, 1521, 1625, 1755, 1875, 2245, 2535, 2925, 3375, 4041, 4225, 4563, 4875, 5625, 5837, 6735, 7605, 8125, 8775, 11225, 12123, 12675, 14625, 16875, 17511, 20205, 21125, 22815, 24375, 29185, 33675, 38025, 43875, 52533, 56125, 60615, 63375, 73125, 75881, 87555, 101025, 105625, 114075, 145925, 157599, 168375, 190125, 219375, 227643, 262665, 280625, 303075, 316875, 379405, 437775, 505125, 570375, 682929, 729625, 787995, 841875, 950625, 1138215, 1313325, 1515375, 1897025, 2048787, 2188875, 2525625, 2851875, 3414645, 3648125, 3939975, 5691075, 6566625, 7576875, 9485125, 10243935, 10944375, 17073225, 19699875, 28455375, 32833125, 47425625, 51219675, 85366125, 98499375, 142276875, 256098375, 426830625, 1280491875]

約数ペア:

[(1, 1280491875), (3, 426830625), (5, 256098375), (9, 142276875), (13, 98499375), (15, 85366125), (25, 51219675), (27, 47425625), (39, 32833125), (45, 28455375), (65, 19699875), (75, 17073225), (117, 10944375), (125, 10243935), (135, 9485125), (169, 7576875), (195, 6566625), (225, 5691075), (325, 3939975), (351, 3648125), (375, 3414645), (449, 2851875), (507, 2525625), (585, 2188875), (625, 2048787), (675, 1897025), (845, 1515375), (975, 1313325), (1125, 1138215), (1347, 950625), (1521, 841875), (1625, 787995), (1755, 729625), (1875, 682929), (2245, 570375), (2535, 505125), (2925, 437775), (3375, 379405), (4041, 316875), (4225, 303075), (4563, 280625), (4875, 262665), (5625, 227643), (5837, 219375), (6735, 190125), (7605, 168375), (8125, 157599), (8775, 145925), (11225, 114075), (12123, 105625), (12675, 101025), (14625, 87555), (16875, 75881), (17511, 73125), (20205, 63375), (21125, 60615), (22815, 56125), (24375, 52533), (29185, 43875), (33675, 38025)]