28142205

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{389}}^1$

素因数の和:470

約数の個数: 64

約数和(自身を含む): 56609280

約数和(自身を除く): 28467075

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 53, 65, 91, 105, 159, 195, 265, 273, 371, 389, 455, 689, 795, 1113, 1167, 1365, 1855, 1945, 2067, 2723, 3445, 4823, 5057, 5565, 5835, 8169, 10335, 13615, 14469, 15171, 20617, 24115, 25285, 35399, 40845, 61851, 72345, 75855, 103085, 106197, 144319, 176995, 268021, 309255, 432957, 530985, 721595, 804063, 1340105, 1876147, 2164785, 4020315, 5628441, 9380735, 28142205]

約数ペア:

[(1, 28142205), (3, 9380735), (5, 5628441), (7, 4020315), (13, 2164785), (15, 1876147), (21, 1340105), (35, 804063), (39, 721595), (53, 530985), (65, 432957), (91, 309255), (105, 268021), (159, 176995), (195, 144319), (265, 106197), (273, 103085), (371, 75855), (389, 72345), (455, 61851), (689, 40845), (795, 35399), (1113, 25285), (1167, 24115), (1365, 20617), (1855, 15171), (1945, 14469), (2067, 13615), (2723, 10335), (3445, 8169), (4823, 5835), (5057, 5565)]