20418384

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{907}}^1$

素因数の和:992

約数の個数: 80

約数和(自身を含む): 61250048

約数和(自身を除く): 40831664

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 67, 84, 112, 134, 168, 201, 268, 336, 402, 469, 536, 804, 907, 938, 1072, 1407, 1608, 1814, 1876, 2721, 2814, 3216, 3628, 3752, 5442, 5628, 6349, 7256, 7504, 10884, 11256, 12698, 14512, 19047, 21768, 22512, 25396, 38094, 43536, 50792, 60769, 76188, 101584, 121538, 152376, 182307, 243076, 304752, 364614, 425383, 486152, 729228, 850766, 972304, 1276149, 1458456, 1701532, 2552298, 2916912, 3403064, 5104596, 6806128, 10209192, 20418384]

約数ペア:

[(1, 20418384), (2, 10209192), (3, 6806128), (4, 5104596), (6, 3403064), (7, 2916912), (8, 2552298), (12, 1701532), (14, 1458456), (16, 1276149), (21, 972304), (24, 850766), (28, 729228), (42, 486152), (48, 425383), (56, 364614), (67, 304752), (84, 243076), (112, 182307), (134, 152376), (168, 121538), (201, 101584), (268, 76188), (336, 60769), (402, 50792), (469, 43536), (536, 38094), (804, 25396), (907, 22512), (938, 21768), (1072, 19047), (1407, 14512), (1608, 12698), (1814, 11256), (1876, 10884), (2721, 7504), (2814, 7256), (3216, 6349), (3628, 5628), (3752, 5442)]