20129538

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{809}}^1$

素因数の和:867

約数の個数: 64

約数和(自身を含む): 48988800

約数和(自身を除く): 28859262

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 29, 33, 39, 58, 66, 78, 87, 143, 174, 286, 319, 377, 429, 638, 754, 809, 858, 957, 1131, 1618, 1914, 2262, 2427, 4147, 4854, 8294, 8899, 10517, 12441, 17798, 21034, 23461, 24882, 26697, 31551, 46922, 53394, 63102, 70383, 115687, 140766, 231374, 258071, 304993, 347061, 516142, 609986, 694122, 774213, 914979, 1548426, 1829958, 3354923, 6709846, 10064769, 20129538]

約数ペア:

[(1, 20129538), (2, 10064769), (3, 6709846), (6, 3354923), (11, 1829958), (13, 1548426), (22, 914979), (26, 774213), (29, 694122), (33, 609986), (39, 516142), (58, 347061), (66, 304993), (78, 258071), (87, 231374), (143, 140766), (174, 115687), (286, 70383), (319, 63102), (377, 53394), (429, 46922), (638, 31551), (754, 26697), (809, 24882), (858, 23461), (957, 21034), (1131, 17798), (1618, 12441), (1914, 10517), (2262, 8899), (2427, 8294), (4147, 4854)]