20235820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{1559}}^1$

素因数の和:1638

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 26938580

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 220, 236, 295, 590, 649, 1180, 1298, 1559, 2596, 3118, 3245, 6236, 6490, 7795, 12980, 15590, 17149, 31180, 34298, 68596, 85745, 91981, 171490, 183962, 342980, 367924, 459905, 919810, 1011791, 1839620, 2023582, 4047164, 5058955, 10117910, 20235820]

約数ペア:

[(1, 20235820), (2, 10117910), (4, 5058955), (5, 4047164), (10, 2023582), (11, 1839620), (20, 1011791), (22, 919810), (44, 459905), (55, 367924), (59, 342980), (110, 183962), (118, 171490), (220, 91981), (236, 85745), (295, 68596), (590, 34298), (649, 31180), (1180, 17149), (1298, 15590), (1559, 12980), (2596, 7795), (3118, 6490), (3245, 6236)]