1306420

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{787}}^1$

素因数の和:879

約数の個数: 24

約数和(自身を含む): 2780064

約数和(自身を除く): 1473644

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 787, 830, 1574, 1660, 3148, 3935, 7870, 15740, 65321, 130642, 261284, 326605, 653210, 1306420]

約数ペア:

[(1, 1306420), (2, 653210), (4, 326605), (5, 261284), (10, 130642), (20, 65321), (83, 15740), (166, 7870), (332, 3935), (415, 3148), (787, 1660), (830, 1574)]