19742060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75931}}^1$

素因数の和:75953

約数の個数: 24

約数和(自身を含む): 44648016

約数和(自身を除く): 24905956

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 75931, 151862, 303724, 379655, 759310, 987103, 1518620, 1974206, 3948412, 4935515, 9871030, 19742060]

約数ペア:

[(1, 19742060), (2, 9871030), (4, 4935515), (5, 3948412), (10, 1974206), (13, 1518620), (20, 987103), (26, 759310), (52, 379655), (65, 303724), (130, 151862), (260, 75931)]