20036340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{709}}^1$

素因数の和:881

約数の個数: 72

約数和(自身を含む): 61250280

約数和(自身を除く): 41213940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 471, 628, 709, 785, 942, 1413, 1418, 1570, 1884, 2127, 2355, 2826, 2836, 3140, 3545, 4254, 4710, 5652, 6381, 7065, 7090, 8508, 9420, 10635, 12762, 14130, 14180, 21270, 25524, 28260, 31905, 42540, 63810, 111313, 127620, 222626, 333939, 445252, 556565, 667878, 1001817, 1113130, 1335756, 1669695, 2003634, 2226260, 3339390, 4007268, 5009085, 6678780, 10018170, 20036340]

約数ペア:

[(1, 20036340), (2, 10018170), (3, 6678780), (4, 5009085), (5, 4007268), (6, 3339390), (9, 2226260), (10, 2003634), (12, 1669695), (15, 1335756), (18, 1113130), (20, 1001817), (30, 667878), (36, 556565), (45, 445252), (60, 333939), (90, 222626), (157, 127620), (180, 111313), (314, 63810), (471, 42540), (628, 31905), (709, 28260), (785, 25524), (942, 21270), (1413, 14180), (1418, 14130), (1570, 12762), (1884, 10635), (2127, 9420), (2355, 8508), (2826, 7090), (2836, 7065), (3140, 6381), (3545, 5652), (4254, 4710)]