148943980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181639}}^1$

素因数の和:181689

約数の個数: 24

約数和(自身を含む): 320412960

約数和(自身を除く): 171468980

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 181639, 363278, 726556, 908195, 1816390, 3632780, 7447199, 14894398, 29788796, 37235995, 74471990, 148943980]

約数ペア:

[(1, 148943980), (2, 74471990), (4, 37235995), (5, 29788796), (10, 14894398), (20, 7447199), (41, 3632780), (82, 1816390), (164, 908195), (205, 726556), (410, 363278), (820, 181639)]