78101420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{55001}}^1$

素因数の和:55081

約数の個数: 24

約数和(自身を含む): 166326048

約数和(自身を除く): 88224628

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 55001, 110002, 220004, 275005, 550010, 1100020, 3905071, 7810142, 15620284, 19525355, 39050710, 78101420]

約数ペア:

[(1, 78101420), (2, 39050710), (4, 19525355), (5, 15620284), (10, 7810142), (20, 3905071), (71, 1100020), (142, 550010), (284, 275005), (355, 220004), (710, 110002), (1420, 55001)]