20407996

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{613}}^1$

素因数の和:694

約数の個数: 48

約数和(自身を含む): 43323840

約数和(自身を除く): 22915844

約数列:

[1, 2, 4, 7, 14, 28, 29, 41, 58, 82, 116, 164, 203, 287, 406, 574, 613, 812, 1148, 1189, 1226, 2378, 2452, 4291, 4756, 8323, 8582, 16646, 17164, 17777, 25133, 33292, 35554, 50266, 71108, 100532, 124439, 175931, 248878, 351862, 497756, 703724, 728857, 1457714, 2915428, 5101999, 10203998, 20407996]

約数ペア:

[(1, 20407996), (2, 10203998), (4, 5101999), (7, 2915428), (14, 1457714), (28, 728857), (29, 703724), (41, 497756), (58, 351862), (82, 248878), (116, 175931), (164, 124439), (203, 100532), (287, 71108), (406, 50266), (574, 35554), (613, 33292), (812, 25133), (1148, 17777), (1189, 17164), (1226, 16646), (2378, 8582), (2452, 8323), (4291, 4756)]