40390280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2153}}^1$

素因数の和:2238

約数の個数: 64

約数和(自身を含む): 105459840

約数和(自身を除く): 65069560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 1340, 1876, 2153, 2345, 2680, 3752, 4306, 4690, 8612, 9380, 10765, 15071, 17224, 18760, 21530, 30142, 43060, 60284, 75355, 86120, 120568, 144251, 150710, 288502, 301420, 577004, 602840, 721255, 1009757, 1154008, 1442510, 2019514, 2885020, 4039028, 5048785, 5770040, 8078056, 10097570, 20195140, 40390280]

約数ペア:

[(1, 40390280), (2, 20195140), (4, 10097570), (5, 8078056), (7, 5770040), (8, 5048785), (10, 4039028), (14, 2885020), (20, 2019514), (28, 1442510), (35, 1154008), (40, 1009757), (56, 721255), (67, 602840), (70, 577004), (134, 301420), (140, 288502), (268, 150710), (280, 144251), (335, 120568), (469, 86120), (536, 75355), (670, 60284), (938, 43060), (1340, 30142), (1876, 21530), (2153, 18760), (2345, 17224), (2680, 15071), (3752, 10765), (4306, 9380), (4690, 8612)]