61461820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{991}}^1$

素因数の和:1450

約数の個数: 48

約数和(自身を含む): 147990528

約数和(自身を除く): 86528708

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 443, 886, 991, 1772, 1982, 2215, 3101, 3964, 4430, 4955, 6202, 6937, 8860, 9910, 12404, 13874, 15505, 19820, 27748, 31010, 34685, 62020, 69370, 138740, 439013, 878026, 1756052, 2195065, 3073091, 4390130, 6146182, 8780260, 12292364, 15365455, 30730910, 61461820]

約数ペア:

[(1, 61461820), (2, 30730910), (4, 15365455), (5, 12292364), (7, 8780260), (10, 6146182), (14, 4390130), (20, 3073091), (28, 2195065), (35, 1756052), (70, 878026), (140, 439013), (443, 138740), (886, 69370), (991, 62020), (1772, 34685), (1982, 31010), (2215, 27748), (3101, 19820), (3964, 15505), (4430, 13874), (4955, 12404), (6202, 9910), (6937, 8860)]