664471040

素因数分解:

$2^9\times 5^1\times {\mathrm{19}}^2\times {\mathrm{719}}^1$

素因数の和:780

約数の個数: 120

約数和(自身を含む): 1683776160

約数和(自身を除く): 1019305120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 64, 76, 80, 95, 128, 152, 160, 190, 256, 304, 320, 361, 380, 512, 608, 640, 719, 722, 760, 1216, 1280, 1438, 1444, 1520, 1805, 2432, 2560, 2876, 2888, 3040, 3595, 3610, 4864, 5752, 5776, 6080, 7190, 7220, 9728, 11504, 11552, 12160, 13661, 14380, 14440, 23008, 23104, 24320, 27322, 28760, 28880, 46016, 46208, 48640, 54644, 57520, 57760, 68305, 92032, 92416, 109288, 115040, 115520, 136610, 184064, 184832, 218576, 230080, 231040, 259559, 273220, 368128, 437152, 460160, 462080, 519118, 546440, 874304, 920320, 924160, 1038236, 1092880, 1297795, 1748608, 1840640, 2076472, 2185760, 2595590, 3497216, 4152944, 4371520, 5191180, 6994432, 8305888, 8743040, 10382360, 16611776, 17486080, 20764720, 33223552, 34972160, 41529440, 66447104, 83058880, 132894208, 166117760, 332235520, 664471040]

約数ペア:

[(1, 664471040), (2, 332235520), (4, 166117760), (5, 132894208), (8, 83058880), (10, 66447104), (16, 41529440), (19, 34972160), (20, 33223552), (32, 20764720), (38, 17486080), (40, 16611776), (64, 10382360), (76, 8743040), (80, 8305888), (95, 6994432), (128, 5191180), (152, 4371520), (160, 4152944), (190, 3497216), (256, 2595590), (304, 2185760), (320, 2076472), (361, 1840640), (380, 1748608), (512, 1297795), (608, 1092880), (640, 1038236), (719, 924160), (722, 920320), (760, 874304), (1216, 546440), (1280, 519118), (1438, 462080), (1444, 460160), (1520, 437152), (1805, 368128), (2432, 273220), (2560, 259559), (2876, 231040), (2888, 230080), (3040, 218576), (3595, 184832), (3610, 184064), (4864, 136610), (5752, 115520), (5776, 115040), (6080, 109288), (7190, 92416), (7220, 92032), (9728, 68305), (11504, 57760), (11552, 57520), (12160, 54644), (13661, 48640), (14380, 46208), (14440, 46016), (23008, 28880), (23104, 28760), (24320, 27322)]