1990345

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1$

素因数の和:145

約数の個数: 32

約数和(自身を含む): 2983680

約数和(自身を除く): 993335

約数列:

[1, 5, 7, 19, 35, 41, 73, 95, 133, 205, 287, 365, 511, 665, 779, 1387, 1435, 2555, 2993, 3895, 5453, 6935, 9709, 14965, 20951, 27265, 48545, 56867, 104755, 284335, 398069, 1990345]

約数ペア:

[(1, 1990345), (5, 398069), (7, 284335), (19, 104755), (35, 56867), (41, 48545), (73, 27265), (95, 20951), (133, 14965), (205, 9709), (287, 6935), (365, 5453), (511, 3895), (665, 2993), (779, 2555), (1387, 1435)]