18353120

素因数分解:

$2^5\times 5^1\times {\mathrm{251}}^1\times {\mathrm{457}}^1$

素因数の和:723

約数の個数: 48

約数和(自身を含む): 43627248

約数和(自身を除く): 25274128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 251, 457, 502, 914, 1004, 1255, 1828, 2008, 2285, 2510, 3656, 4016, 4570, 5020, 7312, 8032, 9140, 10040, 14624, 18280, 20080, 36560, 40160, 73120, 114707, 229414, 458828, 573535, 917656, 1147070, 1835312, 2294140, 3670624, 4588280, 9176560, 18353120]

約数ペア:

[(1, 18353120), (2, 9176560), (4, 4588280), (5, 3670624), (8, 2294140), (10, 1835312), (16, 1147070), (20, 917656), (32, 573535), (40, 458828), (80, 229414), (160, 114707), (251, 73120), (457, 40160), (502, 36560), (914, 20080), (1004, 18280), (1255, 14624), (1828, 10040), (2008, 9140), (2285, 8032), (2510, 7312), (3656, 5020), (4016, 4570)]