8463140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{991}}^1$

素因数の和:1068

約数の個数: 48

約数和(自身を含む): 20665344

約数和(自身を除く): 12202204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 140, 244, 305, 427, 610, 854, 991, 1220, 1708, 1982, 2135, 3964, 4270, 4955, 6937, 8540, 9910, 13874, 19820, 27748, 34685, 60451, 69370, 120902, 138740, 241804, 302255, 423157, 604510, 846314, 1209020, 1692628, 2115785, 4231570, 8463140]

約数ペア:

[(1, 8463140), (2, 4231570), (4, 2115785), (5, 1692628), (7, 1209020), (10, 846314), (14, 604510), (20, 423157), (28, 302255), (35, 241804), (61, 138740), (70, 120902), (122, 69370), (140, 60451), (244, 34685), (305, 27748), (427, 19820), (610, 13874), (854, 9910), (991, 8540), (1220, 6937), (1708, 4955), (1982, 4270), (2135, 3964)]