81889738

素因数分解:

$2^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:742

約数の個数: 32

約数和(自身を含む): 143320320

約数和(自身を除く): 61430582

約数列:

[1, 2, 7, 14, 103, 109, 206, 218, 521, 721, 763, 1042, 1442, 1526, 3647, 7294, 11227, 22454, 53663, 56789, 78589, 107326, 113578, 157178, 375641, 397523, 751282, 795046, 5849267, 11698534, 40944869, 81889738]

約数ペア:

[(1, 81889738), (2, 40944869), (7, 11698534), (14, 5849267), (103, 795046), (109, 751282), (206, 397523), (218, 375641), (521, 157178), (721, 113578), (763, 107326), (1042, 78589), (1442, 56789), (1526, 53663), (3647, 22454), (7294, 11227)]