17455840

素因数分解:

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

素因数の和:1475

約数の個数: 48

約数和(自身を含む): 41791680

約数和(自身を除く): 24335840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 632, 790, 1264, 1381, 1580, 2528, 2762, 3160, 5524, 6320, 6905, 11048, 12640, 13810, 22096, 27620, 44192, 55240, 109099, 110480, 218198, 220960, 436396, 545495, 872792, 1090990, 1745584, 2181980, 3491168, 4363960, 8727920, 17455840]

約数ペア:

[(1, 17455840), (2, 8727920), (4, 4363960), (5, 3491168), (8, 2181980), (10, 1745584), (16, 1090990), (20, 872792), (32, 545495), (40, 436396), (79, 220960), (80, 218198), (158, 110480), (160, 109099), (316, 55240), (395, 44192), (632, 27620), (790, 22096), (1264, 13810), (1381, 12640), (1580, 11048), (2528, 6905), (2762, 6320), (3160, 5524)]