2805500

素因数分解:

$2^2\times 5^3\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:231

約数の個数: 48

約数和(自身を含む): 6359808

約数和(自身を除く): 3554308

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 181, 250, 310, 362, 500, 620, 724, 775, 905, 1550, 1810, 3100, 3620, 3875, 4525, 5611, 7750, 9050, 11222, 15500, 18100, 22444, 22625, 28055, 45250, 56110, 90500, 112220, 140275, 280550, 561100, 701375, 1402750, 2805500]

約数ペア:

[(1, 2805500), (2, 1402750), (4, 701375), (5, 561100), (10, 280550), (20, 140275), (25, 112220), (31, 90500), (50, 56110), (62, 45250), (100, 28055), (124, 22625), (125, 22444), (155, 18100), (181, 15500), (250, 11222), (310, 9050), (362, 7750), (500, 5611), (620, 4525), (724, 3875), (775, 3620), (905, 3100), (1550, 1810)]