8185905

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1999}}^1$

素因数の和:2030

約数の個数: 48

約数和(自身を含む): 17472000

約数和(自身を除く): 9286095

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 35, 39, 45, 63, 65, 91, 105, 117, 195, 273, 315, 455, 585, 819, 1365, 1999, 4095, 5997, 9995, 13993, 17991, 25987, 29985, 41979, 69965, 77961, 89955, 125937, 129935, 181909, 209895, 233883, 389805, 545727, 629685, 909545, 1169415, 1637181, 2728635, 8185905]

約数ペア:

[(1, 8185905), (3, 2728635), (5, 1637181), (7, 1169415), (9, 909545), (13, 629685), (15, 545727), (21, 389805), (35, 233883), (39, 209895), (45, 181909), (63, 129935), (65, 125937), (91, 89955), (105, 77961), (117, 69965), (195, 41979), (273, 29985), (315, 25987), (455, 17991), (585, 13993), (819, 9995), (1365, 5997), (1999, 4095)]