19900725

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{20411}}^1$

素因数の和:20437

約数の個数: 24

約数和(自身を含む): 35435232

約数和(自身を除く): 15534507

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 20411, 61233, 102055, 265343, 306165, 510275, 796029, 1326715, 1530825, 3980145, 6633575, 19900725]

約数ペア:

[(1, 19900725), (3, 6633575), (5, 3980145), (13, 1530825), (15, 1326715), (25, 796029), (39, 510275), (65, 306165), (75, 265343), (195, 102055), (325, 61233), (975, 20411)]