20685288

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{397}}^1$

素因数の和:586

約数の個数: 64

約数和(自身を含む): 56165760

約数和(自身を除く): 35480472

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 39, 52, 78, 104, 156, 167, 312, 334, 397, 501, 668, 794, 1002, 1191, 1336, 1588, 2004, 2171, 2382, 3176, 4008, 4342, 4764, 5161, 6513, 8684, 9528, 10322, 13026, 15483, 17368, 20644, 26052, 30966, 41288, 52104, 61932, 66299, 123864, 132598, 198897, 265196, 397794, 530392, 795588, 861887, 1591176, 1723774, 2585661, 3447548, 5171322, 6895096, 10342644, 20685288]

約数ペア:

[(1, 20685288), (2, 10342644), (3, 6895096), (4, 5171322), (6, 3447548), (8, 2585661), (12, 1723774), (13, 1591176), (24, 861887), (26, 795588), (39, 530392), (52, 397794), (78, 265196), (104, 198897), (156, 132598), (167, 123864), (312, 66299), (334, 61932), (397, 52104), (501, 41288), (668, 30966), (794, 26052), (1002, 20644), (1191, 17368), (1336, 15483), (1588, 13026), (2004, 10322), (2171, 9528), (2382, 8684), (3176, 6513), (4008, 5161), (4342, 4764)]