20400632

素因数分解:

$2^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{337}}^1$

素因数の和:420

約数の個数: 64

約数和(自身を含む): 46725120

約数和(自身を除く): 26324488

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 47, 56, 92, 94, 161, 184, 188, 322, 329, 337, 376, 644, 658, 674, 1081, 1288, 1316, 1348, 2162, 2359, 2632, 2696, 4324, 4718, 7567, 7751, 8648, 9436, 15134, 15502, 15839, 18872, 30268, 31004, 31678, 54257, 60536, 62008, 63356, 108514, 110873, 126712, 217028, 221746, 364297, 434056, 443492, 728594, 886984, 1457188, 2550079, 2914376, 5100158, 10200316, 20400632]

約数ペア:

[(1, 20400632), (2, 10200316), (4, 5100158), (7, 2914376), (8, 2550079), (14, 1457188), (23, 886984), (28, 728594), (46, 443492), (47, 434056), (56, 364297), (92, 221746), (94, 217028), (161, 126712), (184, 110873), (188, 108514), (322, 63356), (329, 62008), (337, 60536), (376, 54257), (644, 31678), (658, 31004), (674, 30268), (1081, 18872), (1288, 15839), (1316, 15502), (1348, 15134), (2162, 9436), (2359, 8648), (2632, 7751), (2696, 7567), (4324, 4718)]