220173980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{846823}}^1$

素因数の和:846845

約数の個数: 24

約数和(自身を含む): 497932512

約数和(自身を除く): 277758532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 846823, 1693646, 3387292, 4234115, 8468230, 11008699, 16936460, 22017398, 44034796, 55043495, 110086990, 220173980]

約数ペア:

[(1, 220173980), (2, 110086990), (4, 55043495), (5, 44034796), (10, 22017398), (13, 16936460), (20, 11008699), (26, 8468230), (52, 4234115), (65, 3387292), (130, 1693646), (260, 846823)]