128625

素因数分解:

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

素因数の和:39

約数の個数: 32

約数和(自身を含む): 249600

約数和(自身を除く): 120975

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 125, 147, 175, 245, 343, 375, 525, 735, 875, 1029, 1225, 1715, 2625, 3675, 5145, 6125, 8575, 18375, 25725, 42875, 128625]

約数ペア:

[(1, 128625), (3, 42875), (5, 25725), (7, 18375), (15, 8575), (21, 6125), (25, 5145), (35, 3675), (49, 2625), (75, 1715), (105, 1225), (125, 1029), (147, 875), (175, 735), (245, 525), (343, 375)]