2019191840

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1\times {\mathrm{557}}^1$

素因数の和:874

約数の個数: 96

約数和(自身を含む): 4842815040

約数和(自身を除く): 2823623200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 163, 278, 326, 556, 557, 652, 695, 815, 1112, 1114, 1304, 1390, 1630, 2224, 2228, 2608, 2780, 2785, 3260, 4448, 4456, 5216, 5560, 5570, 6520, 8912, 11120, 11140, 13040, 17824, 22240, 22280, 22657, 26080, 44560, 45314, 77423, 89120, 90628, 90791, 113285, 154846, 181256, 181582, 226570, 309692, 362512, 363164, 387115, 453140, 453955, 619384, 725024, 726328, 774230, 906280, 907910, 1238768, 1452656, 1548460, 1812560, 1815820, 2477536, 2905312, 3096920, 3625120, 3631640, 6193840, 7263280, 12387680, 12619949, 14526560, 25239898, 50479796, 63099745, 100959592, 126199490, 201919184, 252398980, 403838368, 504797960, 1009595920, 2019191840]

約数ペア:

[(1, 2019191840), (2, 1009595920), (4, 504797960), (5, 403838368), (8, 252398980), (10, 201919184), (16, 126199490), (20, 100959592), (32, 63099745), (40, 50479796), (80, 25239898), (139, 14526560), (160, 12619949), (163, 12387680), (278, 7263280), (326, 6193840), (556, 3631640), (557, 3625120), (652, 3096920), (695, 2905312), (815, 2477536), (1112, 1815820), (1114, 1812560), (1304, 1548460), (1390, 1452656), (1630, 1238768), (2224, 907910), (2228, 906280), (2608, 774230), (2780, 726328), (2785, 725024), (3260, 619384), (4448, 453955), (4456, 453140), (5216, 387115), (5560, 363164), (5570, 362512), (6520, 309692), (8912, 226570), (11120, 181582), (11140, 181256), (13040, 154846), (17824, 113285), (22240, 90791), (22280, 90628), (22657, 89120), (26080, 77423), (44560, 45314)]