28473920

素因数分解:

$2^6\times 5^1\times {\mathrm{101}}^1\times {\mathrm{881}}^1$

素因数の和:999

約数の個数: 56

約数和(自身を含む): 68552568

約数和(自身を除く): 40078648

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 160, 202, 320, 404, 505, 808, 881, 1010, 1616, 1762, 2020, 3232, 3524, 4040, 4405, 6464, 7048, 8080, 8810, 14096, 16160, 17620, 28192, 32320, 35240, 56384, 70480, 88981, 140960, 177962, 281920, 355924, 444905, 711848, 889810, 1423696, 1779620, 2847392, 3559240, 5694784, 7118480, 14236960, 28473920]

約数ペア:

[(1, 28473920), (2, 14236960), (4, 7118480), (5, 5694784), (8, 3559240), (10, 2847392), (16, 1779620), (20, 1423696), (32, 889810), (40, 711848), (64, 444905), (80, 355924), (101, 281920), (160, 177962), (202, 140960), (320, 88981), (404, 70480), (505, 56384), (808, 35240), (881, 32320), (1010, 28192), (1616, 17620), (1762, 16160), (2020, 14096), (3232, 8810), (3524, 8080), (4040, 7048), (4405, 6464)]