20671248

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:392

約数の個数: 80

約数和(自身を含む): 58149056

約数和(自身を除く): 37477808

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 104, 156, 157, 208, 211, 312, 314, 422, 471, 624, 628, 633, 844, 942, 1256, 1266, 1688, 1884, 2041, 2512, 2532, 2743, 3376, 3768, 4082, 5064, 5486, 6123, 7536, 8164, 8229, 10128, 10972, 12246, 16328, 16458, 21944, 24492, 32656, 32916, 33127, 43888, 48984, 65832, 66254, 97968, 99381, 131664, 132508, 198762, 265016, 397524, 430651, 530032, 795048, 861302, 1291953, 1590096, 1722604, 2583906, 3445208, 5167812, 6890416, 10335624, 20671248]

約数ペア:

[(1, 20671248), (2, 10335624), (3, 6890416), (4, 5167812), (6, 3445208), (8, 2583906), (12, 1722604), (13, 1590096), (16, 1291953), (24, 861302), (26, 795048), (39, 530032), (48, 430651), (52, 397524), (78, 265016), (104, 198762), (156, 132508), (157, 131664), (208, 99381), (211, 97968), (312, 66254), (314, 65832), (422, 48984), (471, 43888), (624, 33127), (628, 32916), (633, 32656), (844, 24492), (942, 21944), (1256, 16458), (1266, 16328), (1688, 12246), (1884, 10972), (2041, 10128), (2512, 8229), (2532, 8164), (2743, 7536), (3376, 6123), (3768, 5486), (4082, 5064)]