28407890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{405827}}^1$

素因数の和:405841

約数の個数: 16

約数和(自身を含む): 58439232

約数和(自身を除く): 30031342

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 405827, 811654, 2029135, 2840789, 4058270, 5681578, 14203945, 28407890]

約数ペア:

[(1, 28407890), (2, 14203945), (5, 5681578), (7, 4058270), (10, 2840789), (14, 2029135), (35, 811654), (70, 405827)]