4006640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{157}}^1$

素因数の和:210

約数の個数: 80

約数和(自身を含む): 10579680

約数和(自身を除く): 6573040

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 157, 176, 220, 232, 290, 314, 319, 440, 464, 580, 628, 638, 785, 880, 1160, 1256, 1276, 1570, 1595, 1727, 2320, 2512, 2552, 3140, 3190, 3454, 4553, 5104, 6280, 6380, 6908, 8635, 9106, 12560, 12760, 13816, 17270, 18212, 22765, 25520, 27632, 34540, 36424, 45530, 50083, 69080, 72848, 91060, 100166, 138160, 182120, 200332, 250415, 364240, 400664, 500830, 801328, 1001660, 2003320, 4006640]

約数ペア:

[(1, 4006640), (2, 2003320), (4, 1001660), (5, 801328), (8, 500830), (10, 400664), (11, 364240), (16, 250415), (20, 200332), (22, 182120), (29, 138160), (40, 100166), (44, 91060), (55, 72848), (58, 69080), (80, 50083), (88, 45530), (110, 36424), (116, 34540), (145, 27632), (157, 25520), (176, 22765), (220, 18212), (232, 17270), (290, 13816), (314, 12760), (319, 12560), (440, 9106), (464, 8635), (580, 6908), (628, 6380), (638, 6280), (785, 5104), (880, 4553), (1160, 3454), (1256, 3190), (1276, 3140), (1570, 2552), (1595, 2512), (1727, 2320)]