80668880

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{27253}}^1$

素因数の和:27303

約数の個数: 40

約数和(自身を含む): 192631272

約数和(自身を除く): 111962392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 27253, 54506, 109012, 136265, 218024, 272530, 436048, 545060, 1008361, 1090120, 2016722, 2180240, 4033444, 5041805, 8066888, 10083610, 16133776, 20167220, 40334440, 80668880]

約数ペア:

[(1, 80668880), (2, 40334440), (4, 20167220), (5, 16133776), (8, 10083610), (10, 8066888), (16, 5041805), (20, 4033444), (37, 2180240), (40, 2016722), (74, 1090120), (80, 1008361), (148, 545060), (185, 436048), (296, 272530), (370, 218024), (592, 136265), (740, 109012), (1480, 54506), (2960, 27253)]