8727920

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1381}}^1$

素因数の和:1473

約数の個数: 40

約数和(自身を含む): 20564160

約数和(自身を除く): 11836240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1381, 1580, 2762, 3160, 5524, 6320, 6905, 11048, 13810, 22096, 27620, 55240, 109099, 110480, 218198, 436396, 545495, 872792, 1090990, 1745584, 2181980, 4363960, 8727920]

約数ペア:

[(1, 8727920), (2, 4363960), (4, 2181980), (5, 1745584), (8, 1090990), (10, 872792), (16, 545495), (20, 436396), (40, 218198), (79, 110480), (80, 109099), (158, 55240), (316, 27620), (395, 22096), (632, 13810), (790, 11048), (1264, 6905), (1381, 6320), (1580, 5524), (2762, 3160)]