20578068

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{2207}}^1$

素因数の和:2261

約数の個数: 72

約数和(自身を含む): 61082112

約数和(自身を除く): 40504044

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 37, 42, 63, 74, 84, 111, 126, 148, 222, 252, 259, 333, 444, 518, 666, 777, 1036, 1332, 1554, 2207, 2331, 3108, 4414, 4662, 6621, 8828, 9324, 13242, 15449, 19863, 26484, 30898, 39726, 46347, 61796, 79452, 81659, 92694, 139041, 163318, 185388, 244977, 278082, 326636, 489954, 556164, 571613, 734931, 979908, 1143226, 1469862, 1714839, 2286452, 2939724, 3429678, 5144517, 6859356, 10289034, 20578068]

約数ペア:

[(1, 20578068), (2, 10289034), (3, 6859356), (4, 5144517), (6, 3429678), (7, 2939724), (9, 2286452), (12, 1714839), (14, 1469862), (18, 1143226), (21, 979908), (28, 734931), (36, 571613), (37, 556164), (42, 489954), (63, 326636), (74, 278082), (84, 244977), (111, 185388), (126, 163318), (148, 139041), (222, 92694), (252, 81659), (259, 79452), (333, 61796), (444, 46347), (518, 39726), (666, 30898), (777, 26484), (1036, 19863), (1332, 15449), (1554, 13242), (2207, 9324), (2331, 8828), (3108, 6621), (4414, 4662)]