12678880

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{727}}^1$

素因数の和:851

約数の個数: 48

約数和(自身を含む): 30270240

約数和(自身を除く): 17591360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 727, 872, 1090, 1454, 1744, 2180, 2908, 3488, 3635, 4360, 5816, 7270, 8720, 11632, 14540, 17440, 23264, 29080, 58160, 79243, 116320, 158486, 316972, 396215, 633944, 792430, 1267888, 1584860, 2535776, 3169720, 6339440, 12678880]

約数ペア:

[(1, 12678880), (2, 6339440), (4, 3169720), (5, 2535776), (8, 1584860), (10, 1267888), (16, 792430), (20, 633944), (32, 396215), (40, 316972), (80, 158486), (109, 116320), (160, 79243), (218, 58160), (436, 29080), (545, 23264), (727, 17440), (872, 14540), (1090, 11632), (1454, 8720), (1744, 7270), (2180, 5816), (2908, 4360), (3488, 3635)]