20620380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{199}}^1$

素因数の和:379

約数の個数: 96

約数和(自身を含む): 63705600

約数和(自身を除く): 43085220

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 157, 165, 199, 220, 314, 330, 398, 471, 597, 628, 660, 785, 796, 942, 995, 1194, 1570, 1727, 1884, 1990, 2189, 2355, 2388, 2985, 3140, 3454, 3980, 4378, 4710, 5181, 5970, 6567, 6908, 8635, 8756, 9420, 10362, 10945, 11940, 13134, 17270, 20724, 21890, 25905, 26268, 31243, 32835, 34540, 43780, 51810, 62486, 65670, 93729, 103620, 124972, 131340, 156215, 187458, 312430, 343673, 374916, 468645, 624860, 687346, 937290, 1031019, 1374692, 1718365, 1874580, 2062038, 3436730, 4124076, 5155095, 6873460, 10310190, 20620380]

約数ペア:

[(1, 20620380), (2, 10310190), (3, 6873460), (4, 5155095), (5, 4124076), (6, 3436730), (10, 2062038), (11, 1874580), (12, 1718365), (15, 1374692), (20, 1031019), (22, 937290), (30, 687346), (33, 624860), (44, 468645), (55, 374916), (60, 343673), (66, 312430), (110, 187458), (132, 156215), (157, 131340), (165, 124972), (199, 103620), (220, 93729), (314, 65670), (330, 62486), (398, 51810), (471, 43780), (597, 34540), (628, 32835), (660, 31243), (785, 26268), (796, 25905), (942, 21890), (995, 20724), (1194, 17270), (1570, 13134), (1727, 11940), (1884, 10945), (1990, 10362), (2189, 9420), (2355, 8756), (2388, 8635), (2985, 6908), (3140, 6567), (3454, 5970), (3980, 5181), (4378, 4710)]