1640625

素因数分解:

$3^1\times 5^7\times 7^1$

素因数の和:45

約数の個数: 32

約数和(自身を含む): 3124992

約数和(自身を除く): 1484367

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 125, 175, 375, 525, 625, 875, 1875, 2625, 3125, 4375, 9375, 13125, 15625, 21875, 46875, 65625, 78125, 109375, 234375, 328125, 546875, 1640625]

約数ペア:

[(1, 1640625), (3, 546875), (5, 328125), (7, 234375), (15, 109375), (21, 78125), (25, 65625), (35, 46875), (75, 21875), (105, 15625), (125, 13125), (175, 9375), (375, 4375), (525, 3125), (625, 2625), (875, 1875)]