404124440

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{14621}}^1$

素因数の和:15323

約数の個数: 32

約数和(自身を含む): 910658160

約数和(自身を除く): 506533720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2764, 3455, 5528, 6910, 13820, 14621, 27640, 29242, 58484, 73105, 116968, 146210, 292420, 584840, 10103111, 20206222, 40412444, 50515555, 80824888, 101031110, 202062220, 404124440]

約数ペア:

[(1, 404124440), (2, 202062220), (4, 101031110), (5, 80824888), (8, 50515555), (10, 40412444), (20, 20206222), (40, 10103111), (691, 584840), (1382, 292420), (2764, 146210), (3455, 116968), (5528, 73105), (6910, 58484), (13820, 29242), (14621, 27640)]