28622620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{389}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 65126880

約数和(自身を除く): 36504260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 283, 389, 566, 778, 1132, 1415, 1556, 1945, 2830, 3679, 3890, 5057, 5660, 7358, 7780, 10114, 14716, 18395, 20228, 25285, 36790, 50570, 73580, 101140, 110087, 220174, 440348, 550435, 1100870, 1431131, 2201740, 2862262, 5724524, 7155655, 14311310, 28622620]

約数ペア:

[(1, 28622620), (2, 14311310), (4, 7155655), (5, 5724524), (10, 2862262), (13, 2201740), (20, 1431131), (26, 1100870), (52, 550435), (65, 440348), (130, 220174), (260, 110087), (283, 101140), (389, 73580), (566, 50570), (778, 36790), (1132, 25285), (1415, 20228), (1556, 18395), (1945, 14716), (2830, 10114), (3679, 7780), (3890, 7358), (5057, 5660)]