42801640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2153}}^1$

素因数の和:2242

約数の個数: 64

約数和(自身を含む): 111663360

約数和(自身を除く): 68861720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 994, 1420, 1988, 2153, 2485, 2840, 3976, 4306, 4970, 8612, 9940, 10765, 15071, 17224, 19880, 21530, 30142, 43060, 60284, 75355, 86120, 120568, 150710, 152863, 301420, 305726, 602840, 611452, 764315, 1070041, 1222904, 1528630, 2140082, 3057260, 4280164, 5350205, 6114520, 8560328, 10700410, 21400820, 42801640]

約数ペア:

[(1, 42801640), (2, 21400820), (4, 10700410), (5, 8560328), (7, 6114520), (8, 5350205), (10, 4280164), (14, 3057260), (20, 2140082), (28, 1528630), (35, 1222904), (40, 1070041), (56, 764315), (70, 611452), (71, 602840), (140, 305726), (142, 301420), (280, 152863), (284, 150710), (355, 120568), (497, 86120), (568, 75355), (710, 60284), (994, 43060), (1420, 30142), (1988, 21530), (2153, 19880), (2485, 17224), (2840, 15071), (3976, 10765), (4306, 9940), (4970, 8612)]