13290025

素因数分解:

$5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{571}}^1$

素因数の和:614

約数の個数: 36

約数和(自身を含む): 20214480

約数和(自身を除く): 6924455

約数列:

[1, 5, 7, 19, 25, 35, 49, 95, 133, 175, 245, 475, 571, 665, 931, 1225, 2855, 3325, 3997, 4655, 10849, 14275, 19985, 23275, 27979, 54245, 75943, 99925, 139895, 271225, 379715, 531601, 699475, 1898575, 2658005, 13290025]

約数ペア:

[(1, 13290025), (5, 2658005), (7, 1898575), (19, 699475), (25, 531601), (35, 379715), (49, 271225), (95, 139895), (133, 99925), (175, 75943), (245, 54245), (475, 27979), (571, 23275), (665, 19985), (931, 14275), (1225, 10849), (2855, 4655), (3325, 3997)]