56130640

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:320

約数の個数: 80

約数和(自身を含む): 135772560

約数和(自身を除く): 79641920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 109, 157, 164, 205, 218, 314, 328, 410, 436, 545, 628, 656, 785, 820, 872, 1090, 1256, 1570, 1640, 1744, 2180, 2512, 3140, 3280, 4360, 4469, 6280, 6437, 8720, 8938, 12560, 12874, 17113, 17876, 22345, 25748, 32185, 34226, 35752, 44690, 51496, 64370, 68452, 71504, 85565, 89380, 102992, 128740, 136904, 171130, 178760, 257480, 273808, 342260, 357520, 514960, 684520, 701633, 1369040, 1403266, 2806532, 3508165, 5613064, 7016330, 11226128, 14032660, 28065320, 56130640]

約数ペア:

[(1, 56130640), (2, 28065320), (4, 14032660), (5, 11226128), (8, 7016330), (10, 5613064), (16, 3508165), (20, 2806532), (40, 1403266), (41, 1369040), (80, 701633), (82, 684520), (109, 514960), (157, 357520), (164, 342260), (205, 273808), (218, 257480), (314, 178760), (328, 171130), (410, 136904), (436, 128740), (545, 102992), (628, 89380), (656, 85565), (785, 71504), (820, 68452), (872, 64370), (1090, 51496), (1256, 44690), (1570, 35752), (1640, 34226), (1744, 32185), (2180, 25748), (2512, 22345), (3140, 17876), (3280, 17113), (4360, 12874), (4469, 12560), (6280, 8938), (6437, 8720)]