28353820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{359}}^2$

素因数の和:738

約数の個数: 36

約数和(自身を含む): 65137464

約数和(自身を除く): 36783644

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 359, 718, 1436, 1795, 3590, 3949, 7180, 7898, 15796, 19745, 39490, 78980, 128881, 257762, 515524, 644405, 1288810, 1417691, 2577620, 2835382, 5670764, 7088455, 14176910, 28353820]

約数ペア:

[(1, 28353820), (2, 14176910), (4, 7088455), (5, 5670764), (10, 2835382), (11, 2577620), (20, 1417691), (22, 1288810), (44, 644405), (55, 515524), (110, 257762), (220, 128881), (359, 78980), (718, 39490), (1436, 19745), (1795, 15796), (3590, 7898), (3949, 7180)]