1245620

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1021}}^1$

素因数の和:1091

約数の個数: 24

約数和(自身を含む): 2661288

約数和(自身を除く): 1415668

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1021, 1220, 2042, 4084, 5105, 10210, 20420, 62281, 124562, 249124, 311405, 622810, 1245620]

約数ペア:

[(1, 1245620), (2, 622810), (4, 311405), (5, 249124), (10, 124562), (20, 62281), (61, 20420), (122, 10210), (244, 5105), (305, 4084), (610, 2042), (1021, 1220)]