78169120

素因数分解:

$2^5\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1901}}^1$

素因数の和:2173

約数の個数: 48

約数和(自身を含む): 185490648

約数和(自身を除く): 107321528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 257, 514, 1028, 1285, 1901, 2056, 2570, 3802, 4112, 5140, 7604, 8224, 9505, 10280, 15208, 19010, 20560, 30416, 38020, 41120, 60832, 76040, 152080, 304160, 488557, 977114, 1954228, 2442785, 3908456, 4885570, 7816912, 9771140, 15633824, 19542280, 39084560, 78169120]

約数ペア:

[(1, 78169120), (2, 39084560), (4, 19542280), (5, 15633824), (8, 9771140), (10, 7816912), (16, 4885570), (20, 3908456), (32, 2442785), (40, 1954228), (80, 977114), (160, 488557), (257, 304160), (514, 152080), (1028, 76040), (1285, 60832), (1901, 41120), (2056, 38020), (2570, 30416), (3802, 20560), (4112, 19010), (5140, 15208), (7604, 10280), (8224, 9505)]