12688740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{449}}^1$

素因数の和:621

約数の個数: 72

約数和(自身を含む): 38820600

約数和(自身を除く): 26131860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 157, 180, 314, 449, 471, 628, 785, 898, 942, 1347, 1413, 1570, 1796, 1884, 2245, 2355, 2694, 2826, 3140, 4041, 4490, 4710, 5388, 5652, 6735, 7065, 8082, 8980, 9420, 13470, 14130, 16164, 20205, 26940, 28260, 40410, 70493, 80820, 140986, 211479, 281972, 352465, 422958, 634437, 704930, 845916, 1057395, 1268874, 1409860, 2114790, 2537748, 3172185, 4229580, 6344370, 12688740]

約数ペア:

[(1, 12688740), (2, 6344370), (3, 4229580), (4, 3172185), (5, 2537748), (6, 2114790), (9, 1409860), (10, 1268874), (12, 1057395), (15, 845916), (18, 704930), (20, 634437), (30, 422958), (36, 352465), (45, 281972), (60, 211479), (90, 140986), (157, 80820), (180, 70493), (314, 40410), (449, 28260), (471, 26940), (628, 20205), (785, 16164), (898, 14130), (942, 13470), (1347, 9420), (1413, 8980), (1570, 8082), (1796, 7065), (1884, 6735), (2245, 5652), (2355, 5388), (2694, 4710), (2826, 4490), (3140, 4041)]