64103540

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{569}}^1$

素因数の和:752

約数の個数: 48

約数和(自身を含む): 139043520

約数和(自身を除く): 74939980

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 131, 172, 215, 262, 430, 524, 569, 655, 860, 1138, 1310, 2276, 2620, 2845, 5633, 5690, 11266, 11380, 22532, 24467, 28165, 48934, 56330, 74539, 97868, 112660, 122335, 149078, 244670, 298156, 372695, 489340, 745390, 1490780, 3205177, 6410354, 12820708, 16025885, 32051770, 64103540]

約数ペア:

[(1, 64103540), (2, 32051770), (4, 16025885), (5, 12820708), (10, 6410354), (20, 3205177), (43, 1490780), (86, 745390), (131, 489340), (172, 372695), (215, 298156), (262, 244670), (430, 149078), (524, 122335), (569, 112660), (655, 97868), (860, 74539), (1138, 56330), (1310, 48934), (2276, 28165), (2620, 24467), (2845, 22532), (5633, 11380), (5690, 11266)]