449270240

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{20201}}^1$

素因数の和:20355

約数の個数: 48

約数和(自身を含む): 1069089840

約数和(自身を除く): 619819600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 278, 556, 695, 1112, 1390, 2224, 2780, 4448, 5560, 11120, 20201, 22240, 40402, 80804, 101005, 161608, 202010, 323216, 404020, 646432, 808040, 1616080, 2807939, 3232160, 5615878, 11231756, 14039695, 22463512, 28079390, 44927024, 56158780, 89854048, 112317560, 224635120, 449270240]

約数ペア:

[(1, 449270240), (2, 224635120), (4, 112317560), (5, 89854048), (8, 56158780), (10, 44927024), (16, 28079390), (20, 22463512), (32, 14039695), (40, 11231756), (80, 5615878), (139, 3232160), (160, 2807939), (278, 1616080), (556, 808040), (695, 646432), (1112, 404020), (1390, 323216), (2224, 202010), (2780, 161608), (4448, 101005), (5560, 80804), (11120, 40402), (20201, 22240)]