129601820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{2591}}^1$

素因数の和:2702

約数の個数: 48

約数和(自身を含む): 283481856

約数和(自身を除く): 153880036

約数列:

[1, 2, 4, 5, 10, 20, 41, 61, 82, 122, 164, 205, 244, 305, 410, 610, 820, 1220, 2501, 2591, 5002, 5182, 10004, 10364, 12505, 12955, 25010, 25910, 50020, 51820, 106231, 158051, 212462, 316102, 424924, 531155, 632204, 790255, 1062310, 1580510, 2124620, 3161020, 6480091, 12960182, 25920364, 32400455, 64800910, 129601820]

約数ペア:

[(1, 129601820), (2, 64800910), (4, 32400455), (5, 25920364), (10, 12960182), (20, 6480091), (41, 3161020), (61, 2124620), (82, 1580510), (122, 1062310), (164, 790255), (205, 632204), (244, 531155), (305, 424924), (410, 316102), (610, 212462), (820, 158051), (1220, 106231), (2501, 51820), (2591, 50020), (5002, 25910), (5182, 25010), (10004, 12955), (10364, 12505)]