1988025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2039}}^1$

素因数の和:2065

約数の個数: 24

約数和(自身を含む): 3541440

約数和(自身を除く): 1553415

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 2039, 6117, 10195, 26507, 30585, 50975, 79521, 132535, 152925, 397605, 662675, 1988025]

約数ペア:

[(1, 1988025), (3, 662675), (5, 397605), (13, 152925), (15, 132535), (25, 79521), (39, 50975), (65, 30585), (75, 26507), (195, 10195), (325, 6117), (975, 2039)]