646542

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{307}}^1$

素因数の和:334

約数の個数: 40

約数和(自身を含む): 1565256

約数和(自身を除く): 918714

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 307, 351, 614, 702, 921, 1053, 1842, 2106, 2763, 3991, 5526, 7982, 8289, 11973, 16578, 23946, 24867, 35919, 49734, 71838, 107757, 215514, 323271, 646542]

約数ペア:

[(1, 646542), (2, 323271), (3, 215514), (6, 107757), (9, 71838), (13, 49734), (18, 35919), (26, 24867), (27, 23946), (39, 16578), (54, 11973), (78, 8289), (81, 7982), (117, 5526), (162, 3991), (234, 2763), (307, 2106), (351, 1842), (614, 1053), (702, 921)]