20121897780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{880223}}^1$

素因数の和:880365

約数の個数: 72

約数和(自身を含む): 61517094912

約数和(自身を除く): 41395197132

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 127, 180, 254, 381, 508, 635, 762, 1143, 1270, 1524, 1905, 2286, 2540, 3810, 4572, 5715, 7620, 11430, 22860, 880223, 1760446, 2640669, 3520892, 4401115, 5281338, 7922007, 8802230, 10562676, 13203345, 15844014, 17604460, 26406690, 31688028, 39610035, 52813380, 79220070, 111788321, 158440140, 223576642, 335364963, 447153284, 558941605, 670729926, 1006094889, 1117883210, 1341459852, 1676824815, 2012189778, 2235766420, 3353649630, 4024379556, 5030474445, 6707299260, 10060948890, 20121897780]

約数ペア:

[(1, 20121897780), (2, 10060948890), (3, 6707299260), (4, 5030474445), (5, 4024379556), (6, 3353649630), (9, 2235766420), (10, 2012189778), (12, 1676824815), (15, 1341459852), (18, 1117883210), (20, 1006094889), (30, 670729926), (36, 558941605), (45, 447153284), (60, 335364963), (90, 223576642), (127, 158440140), (180, 111788321), (254, 79220070), (381, 52813380), (508, 39610035), (635, 31688028), (762, 26406690), (1143, 17604460), (1270, 15844014), (1524, 13203345), (1905, 10562676), (2286, 8802230), (2540, 7922007), (3810, 5281338), (4572, 4401115), (5715, 3520892), (7620, 2640669), (11430, 1760446), (22860, 880223)]