664756840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{9623}}^1$

素因数の和:9802

約数の個数: 64

約数和(自身を含む): 1642239360

約数和(自身を除く): 977482520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 157, 220, 314, 440, 628, 785, 1256, 1570, 1727, 3140, 3454, 6280, 6908, 8635, 9623, 13816, 17270, 19246, 34540, 38492, 48115, 69080, 76984, 96230, 105853, 192460, 211706, 384920, 423412, 529265, 846824, 1058530, 1510811, 2117060, 3021622, 4234120, 6043244, 7554055, 12086488, 15108110, 16618921, 30216220, 33237842, 60432440, 66475684, 83094605, 132951368, 166189210, 332378420, 664756840]

約数ペア:

[(1, 664756840), (2, 332378420), (4, 166189210), (5, 132951368), (8, 83094605), (10, 66475684), (11, 60432440), (20, 33237842), (22, 30216220), (40, 16618921), (44, 15108110), (55, 12086488), (88, 7554055), (110, 6043244), (157, 4234120), (220, 3021622), (314, 2117060), (440, 1510811), (628, 1058530), (785, 846824), (1256, 529265), (1570, 423412), (1727, 384920), (3140, 211706), (3454, 192460), (6280, 105853), (6908, 96230), (8635, 76984), (9623, 69080), (13816, 48115), (17270, 38492), (19246, 34540)]