80544080

素因数分解:

$2^4\times 5^1\times {\mathrm{541}}^1\times {\mathrm{1861}}^1$

素因数の和:2415

約数の個数: 40

約数和(自身を含む): 187711944

約数和(自身を除く): 107167864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 541, 1082, 1861, 2164, 2705, 3722, 4328, 5410, 7444, 8656, 9305, 10820, 14888, 18610, 21640, 29776, 37220, 43280, 74440, 148880, 1006801, 2013602, 4027204, 5034005, 8054408, 10068010, 16108816, 20136020, 40272040, 80544080]

約数ペア:

[(1, 80544080), (2, 40272040), (4, 20136020), (5, 16108816), (8, 10068010), (10, 8054408), (16, 5034005), (20, 4027204), (40, 2013602), (80, 1006801), (541, 148880), (1082, 74440), (1861, 43280), (2164, 37220), (2705, 29776), (3722, 21640), (4328, 18610), (5410, 14888), (7444, 10820), (8656, 9305)]