163990225

素因数分解:

$5^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{5749}}^1$

素因数の和:5929

約数の個数: 24

約数和(自身を含む): 233864000

約数和(自身を除く): 69873775

約数列:

[1, 5, 7, 25, 35, 163, 175, 815, 1141, 4075, 5705, 5749, 28525, 28745, 40243, 143725, 201215, 937087, 1006075, 4685435, 6559609, 23427175, 32798045, 163990225]

約数ペア:

[(1, 163990225), (5, 32798045), (7, 23427175), (25, 6559609), (35, 4685435), (163, 1006075), (175, 937087), (815, 201215), (1141, 143725), (4075, 40243), (5705, 28745), (5749, 28525)]