80845518

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:421

約数の個数: 64

約数和(自身を含む): 181177920

約数和(自身を除く): 100332402

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 109, 111, 218, 222, 257, 327, 481, 514, 654, 771, 962, 1417, 1443, 1542, 2834, 2886, 3341, 4033, 4251, 6682, 8066, 8502, 9509, 10023, 12099, 19018, 20046, 24198, 28013, 28527, 52429, 56026, 57054, 84039, 104858, 123617, 157287, 168078, 247234, 314574, 364169, 370851, 728338, 741702, 1036481, 1092507, 2072962, 2185014, 3109443, 6218886, 13474253, 26948506, 40422759, 80845518]

約数ペア:

[(1, 80845518), (2, 40422759), (3, 26948506), (6, 13474253), (13, 6218886), (26, 3109443), (37, 2185014), (39, 2072962), (74, 1092507), (78, 1036481), (109, 741702), (111, 728338), (218, 370851), (222, 364169), (257, 314574), (327, 247234), (481, 168078), (514, 157287), (654, 123617), (771, 104858), (962, 84039), (1417, 57054), (1443, 56026), (1542, 52429), (2834, 28527), (2886, 28013), (3341, 24198), (4033, 20046), (4251, 19018), (6682, 12099), (8066, 10023), (8502, 9509)]