20816730

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{163}}^1$

素因数の和:233

約数の個数: 128

約数和(自身を含む): 62346240

約数和(自身を除く): 41529510

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 27, 30, 33, 43, 45, 54, 55, 66, 86, 90, 99, 110, 129, 135, 163, 165, 198, 215, 258, 270, 297, 326, 330, 387, 430, 473, 489, 495, 594, 645, 774, 815, 946, 978, 990, 1161, 1290, 1419, 1467, 1485, 1630, 1793, 1935, 2322, 2365, 2445, 2838, 2934, 2970, 3586, 3870, 4257, 4401, 4730, 4890, 5379, 5805, 7009, 7095, 7335, 8514, 8802, 8965, 10758, 11610, 12771, 14018, 14190, 14670, 16137, 17930, 21027, 21285, 22005, 25542, 26895, 32274, 35045, 42054, 42570, 44010, 48411, 53790, 63081, 63855, 70090, 77099, 80685, 96822, 105135, 126162, 127710, 154198, 161370, 189243, 210270, 231297, 242055, 315405, 378486, 385495, 462594, 484110, 630810, 693891, 770990, 946215, 1156485, 1387782, 1892430, 2081673, 2312970, 3469455, 4163346, 6938910, 10408365, 20816730]

約数ペア:

[(1, 20816730), (2, 10408365), (3, 6938910), (5, 4163346), (6, 3469455), (9, 2312970), (10, 2081673), (11, 1892430), (15, 1387782), (18, 1156485), (22, 946215), (27, 770990), (30, 693891), (33, 630810), (43, 484110), (45, 462594), (54, 385495), (55, 378486), (66, 315405), (86, 242055), (90, 231297), (99, 210270), (110, 189243), (129, 161370), (135, 154198), (163, 127710), (165, 126162), (198, 105135), (215, 96822), (258, 80685), (270, 77099), (297, 70090), (326, 63855), (330, 63081), (387, 53790), (430, 48411), (473, 44010), (489, 42570), (495, 42054), (594, 35045), (645, 32274), (774, 26895), (815, 25542), (946, 22005), (978, 21285), (990, 21027), (1161, 17930), (1290, 16137), (1419, 14670), (1467, 14190), (1485, 14018), (1630, 12771), (1793, 11610), (1935, 10758), (2322, 8965), (2365, 8802), (2445, 8514), (2838, 7335), (2934, 7095), (2970, 7009), (3586, 5805), (3870, 5379), (4257, 4890), (4401, 4730)]