643661564

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1217}}^1\times {\mathrm{1453}}^1$

素因数の和:2694

約数の個数: 48

約数和(自身を含む): 1388442048

約数和(自身を除く): 744780484

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 1217, 1453, 2434, 2906, 4868, 5812, 8519, 10171, 15821, 17038, 18889, 20342, 31642, 34076, 37778, 40684, 63284, 75556, 110747, 132223, 221494, 264446, 442988, 528892, 1768301, 3536602, 7073204, 12378107, 22987913, 24756214, 45975826, 49512428, 91951652, 160915391, 321830782, 643661564]

約数ペア:

[(1, 643661564), (2, 321830782), (4, 160915391), (7, 91951652), (13, 49512428), (14, 45975826), (26, 24756214), (28, 22987913), (52, 12378107), (91, 7073204), (182, 3536602), (364, 1768301), (1217, 528892), (1453, 442988), (2434, 264446), (2906, 221494), (4868, 132223), (5812, 110747), (8519, 75556), (10171, 63284), (15821, 40684), (17038, 37778), (18889, 34076), (20342, 31642)]