28409030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{218531}}^1$

素因数の和:218551

約数の個数: 16

約数和(自身を含む): 55070064

約数和(自身を除く): 26661034

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 218531, 437062, 1092655, 2185310, 2840903, 5681806, 14204515, 28409030]

約数ペア:

[(1, 28409030), (2, 14204515), (5, 5681806), (10, 2840903), (13, 2185310), (26, 1092655), (65, 437062), (130, 218531)]