126077680

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19949}}^1$

素因数の和:20041

約数の個数: 40

約数和(自身を含む): 296856000

約数和(自身を除く): 170778320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 19949, 39898, 79796, 99745, 159592, 199490, 319184, 398980, 797960, 1575971, 1595920, 3151942, 6303884, 7879855, 12607768, 15759710, 25215536, 31519420, 63038840, 126077680]

約数ペア:

[(1, 126077680), (2, 63038840), (4, 31519420), (5, 25215536), (8, 15759710), (10, 12607768), (16, 7879855), (20, 6303884), (40, 3151942), (79, 1595920), (80, 1575971), (158, 797960), (316, 398980), (395, 319184), (632, 199490), (790, 159592), (1264, 99745), (1580, 79796), (3160, 39898), (6320, 19949)]