20591284

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:448

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 23438156

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 181, 238, 239, 362, 476, 478, 724, 956, 1267, 1673, 2534, 3077, 3346, 4063, 5068, 6154, 6692, 8126, 12308, 16252, 21539, 28441, 43078, 43259, 56882, 86156, 86518, 113764, 173036, 302813, 605626, 735403, 1211252, 1470806, 2941612, 5147821, 10295642, 20591284]

約数ペア:

[(1, 20591284), (2, 10295642), (4, 5147821), (7, 2941612), (14, 1470806), (17, 1211252), (28, 735403), (34, 605626), (68, 302813), (119, 173036), (181, 113764), (238, 86518), (239, 86156), (362, 56882), (476, 43259), (478, 43078), (724, 28441), (956, 21539), (1267, 16252), (1673, 12308), (2534, 8126), (3077, 6692), (3346, 6154), (4063, 5068)]