28762760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{55313}}^1$

素因数の和:55337

約数の個数: 32

約数和(自身を含む): 69695640

約数和(自身を除く): 40932880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 55313, 110626, 221252, 276565, 442504, 553130, 719069, 1106260, 1438138, 2212520, 2876276, 3595345, 5752552, 7190690, 14381380, 28762760]

約数ペア:

[(1, 28762760), (2, 14381380), (4, 7190690), (5, 5752552), (8, 3595345), (10, 2876276), (13, 2212520), (20, 1438138), (26, 1106260), (40, 719069), (52, 553130), (65, 442504), (104, 276565), (130, 221252), (260, 110626), (520, 55313)]