1280521875

素因数分解:

$3^1\times 5^5\times {\mathrm{137}}^1\times {\mathrm{997}}^1$

素因数の和:1162

約数の個数: 48

約数和(自身を含む): 2151799776

約数和(自身を除く): 871277901

約数列:

[1, 3, 5, 15, 25, 75, 125, 137, 375, 411, 625, 685, 997, 1875, 2055, 2991, 3125, 3425, 4985, 9375, 10275, 14955, 17125, 24925, 51375, 74775, 85625, 124625, 136589, 256875, 373875, 409767, 428125, 623125, 682945, 1284375, 1869375, 2048835, 3115625, 3414725, 9346875, 10244175, 17073625, 51220875, 85368125, 256104375, 426840625, 1280521875]

約数ペア:

[(1, 1280521875), (3, 426840625), (5, 256104375), (15, 85368125), (25, 51220875), (75, 17073625), (125, 10244175), (137, 9346875), (375, 3414725), (411, 3115625), (625, 2048835), (685, 1869375), (997, 1284375), (1875, 682945), (2055, 623125), (2991, 428125), (3125, 409767), (3425, 373875), (4985, 256875), (9375, 136589), (10275, 124625), (14955, 85625), (17125, 74775), (24925, 51375)]