20875360

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{409}}^1$

素因数の和:464

約数の個数: 96

約数和(自身を含む): 55792800

約数和(自身を除く): 34917440

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 32, 40, 44, 55, 58, 80, 88, 110, 116, 145, 160, 176, 220, 232, 290, 319, 352, 409, 440, 464, 580, 638, 818, 880, 928, 1160, 1276, 1595, 1636, 1760, 2045, 2320, 2552, 3190, 3272, 4090, 4499, 4640, 5104, 6380, 6544, 8180, 8998, 10208, 11861, 12760, 13088, 16360, 17996, 22495, 23722, 25520, 32720, 35992, 44990, 47444, 51040, 59305, 65440, 71984, 89980, 94888, 118610, 130471, 143968, 179960, 189776, 237220, 260942, 359920, 379552, 474440, 521884, 652355, 719840, 948880, 1043768, 1304710, 1897760, 2087536, 2609420, 4175072, 5218840, 10437680, 20875360]

約数ペア:

[(1, 20875360), (2, 10437680), (4, 5218840), (5, 4175072), (8, 2609420), (10, 2087536), (11, 1897760), (16, 1304710), (20, 1043768), (22, 948880), (29, 719840), (32, 652355), (40, 521884), (44, 474440), (55, 379552), (58, 359920), (80, 260942), (88, 237220), (110, 189776), (116, 179960), (145, 143968), (160, 130471), (176, 118610), (220, 94888), (232, 89980), (290, 71984), (319, 65440), (352, 59305), (409, 51040), (440, 47444), (464, 44990), (580, 35992), (638, 32720), (818, 25520), (880, 23722), (928, 22495), (1160, 17996), (1276, 16360), (1595, 13088), (1636, 12760), (1760, 11861), (2045, 10208), (2320, 8998), (2552, 8180), (3190, 6544), (3272, 6380), (4090, 5104), (4499, 4640)]