1914640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{263}}^1$

素因数の和:296

約数の個数: 80

約数和(自身を含む): 5499648

約数和(自身を除く): 3585008

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 182, 208, 260, 263, 280, 364, 455, 520, 526, 560, 728, 910, 1040, 1052, 1315, 1456, 1820, 1841, 2104, 2630, 3419, 3640, 3682, 4208, 5260, 6838, 7280, 7364, 9205, 10520, 13676, 14728, 17095, 18410, 21040, 23933, 27352, 29456, 34190, 36820, 47866, 54704, 68380, 73640, 95732, 119665, 136760, 147280, 191464, 239330, 273520, 382928, 478660, 957320, 1914640]

約数ペア:

[(1, 1914640), (2, 957320), (4, 478660), (5, 382928), (7, 273520), (8, 239330), (10, 191464), (13, 147280), (14, 136760), (16, 119665), (20, 95732), (26, 73640), (28, 68380), (35, 54704), (40, 47866), (52, 36820), (56, 34190), (65, 29456), (70, 27352), (80, 23933), (91, 21040), (104, 18410), (112, 17095), (130, 14728), (140, 13676), (182, 10520), (208, 9205), (260, 7364), (263, 7280), (280, 6838), (364, 5260), (455, 4208), (520, 3682), (526, 3640), (560, 3419), (728, 2630), (910, 2104), (1040, 1841), (1052, 1820), (1315, 1456)]