78194375

素因数分解:

$5^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1$

素因数の和:381

約数の個数: 40

約数和(自身を含む): 113888544

約数和(自身を除く): 35694169

約数列:

[1, 5, 7, 25, 35, 61, 125, 175, 293, 305, 427, 625, 875, 1465, 1525, 2051, 2135, 4375, 7325, 7625, 10255, 10675, 17873, 36625, 38125, 51275, 53375, 89365, 125111, 183125, 256375, 266875, 446825, 625555, 1281875, 2234125, 3127775, 11170625, 15638875, 78194375]

約数ペア:

[(1, 78194375), (5, 15638875), (7, 11170625), (25, 3127775), (35, 2234125), (61, 1281875), (125, 625555), (175, 446825), (293, 266875), (305, 256375), (427, 183125), (625, 125111), (875, 89365), (1465, 53375), (1525, 51275), (2051, 38125), (2135, 36625), (4375, 17873), (7325, 10675), (7625, 10255)]