840021306

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{601}}^1$

素因数の和:887

約数の個数: 64

約数和(自身を含む): 1816286976

約数和(自身を除く): 976265670

約数列:

[1, 2, 3, 6, 17, 34, 51, 71, 102, 142, 193, 213, 386, 426, 579, 601, 1158, 1202, 1207, 1803, 2414, 3281, 3606, 3621, 6562, 7242, 9843, 10217, 13703, 19686, 20434, 27406, 30651, 41109, 42671, 61302, 82218, 85342, 115993, 128013, 231986, 232951, 256026, 347979, 465902, 695958, 698853, 725407, 1397706, 1450814, 1971881, 2176221, 3943762, 4352442, 5915643, 8235503, 11831286, 16471006, 24706509, 49413018, 140003551, 280007102, 420010653, 840021306]

約数ペア:

[(1, 840021306), (2, 420010653), (3, 280007102), (6, 140003551), (17, 49413018), (34, 24706509), (51, 16471006), (71, 11831286), (102, 8235503), (142, 5915643), (193, 4352442), (213, 3943762), (386, 2176221), (426, 1971881), (579, 1450814), (601, 1397706), (1158, 725407), (1202, 698853), (1207, 695958), (1803, 465902), (2414, 347979), (3281, 256026), (3606, 232951), (3621, 231986), (6562, 128013), (7242, 115993), (9843, 85342), (10217, 82218), (13703, 61302), (19686, 42671), (20434, 41109), (27406, 30651)]