80105120

素因数分解:

$2^5\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4957}}^1$

素因数の和:5073

約数の個数: 48

約数和(自身を含む): 191160648

約数和(自身を除く): 111055528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 101, 160, 202, 404, 505, 808, 1010, 1616, 2020, 3232, 4040, 4957, 8080, 9914, 16160, 19828, 24785, 39656, 49570, 79312, 99140, 158624, 198280, 396560, 500657, 793120, 1001314, 2002628, 2503285, 4005256, 5006570, 8010512, 10013140, 16021024, 20026280, 40052560, 80105120]

約数ペア:

[(1, 80105120), (2, 40052560), (4, 20026280), (5, 16021024), (8, 10013140), (10, 8010512), (16, 5006570), (20, 4005256), (32, 2503285), (40, 2002628), (80, 1001314), (101, 793120), (160, 500657), (202, 396560), (404, 198280), (505, 158624), (808, 99140), (1010, 79312), (1616, 49570), (2020, 39656), (3232, 24785), (4040, 19828), (4957, 16160), (8080, 9914)]