217952560

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{2971}}^1$

素因数の和:3122

約数の個数: 80

約数和(自身を含む): 583748352

約数和(自身を除く): 365795792

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 131, 140, 262, 280, 524, 560, 655, 917, 1048, 1310, 1834, 2096, 2620, 2971, 3668, 4585, 5240, 5942, 7336, 9170, 10480, 11884, 14672, 14855, 18340, 20797, 23768, 29710, 36680, 41594, 47536, 59420, 73360, 83188, 103985, 118840, 166376, 207970, 237680, 332752, 389201, 415940, 778402, 831880, 1556804, 1663760, 1946005, 2724407, 3113608, 3892010, 5448814, 6227216, 7784020, 10897628, 13622035, 15568040, 21795256, 27244070, 31136080, 43590512, 54488140, 108976280, 217952560]

約数ペア:

[(1, 217952560), (2, 108976280), (4, 54488140), (5, 43590512), (7, 31136080), (8, 27244070), (10, 21795256), (14, 15568040), (16, 13622035), (20, 10897628), (28, 7784020), (35, 6227216), (40, 5448814), (56, 3892010), (70, 3113608), (80, 2724407), (112, 1946005), (131, 1663760), (140, 1556804), (262, 831880), (280, 778402), (524, 415940), (560, 389201), (655, 332752), (917, 237680), (1048, 207970), (1310, 166376), (1834, 118840), (2096, 103985), (2620, 83188), (2971, 73360), (3668, 59420), (4585, 47536), (5240, 41594), (5942, 36680), (7336, 29710), (9170, 23768), (10480, 20797), (11884, 18340), (14672, 14855)]