78049360

素因数分解:

$2^4\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1987}}^1$

素因数の和:2491

約数の個数: 40

約数和(自身を含む): 181925856

約数和(自身を除く): 103876496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 491, 982, 1964, 1987, 2455, 3928, 3974, 4910, 7856, 7948, 9820, 9935, 15896, 19640, 19870, 31792, 39280, 39740, 79480, 158960, 975617, 1951234, 3902468, 4878085, 7804936, 9756170, 15609872, 19512340, 39024680, 78049360]

約数ペア:

[(1, 78049360), (2, 39024680), (4, 19512340), (5, 15609872), (8, 9756170), (10, 7804936), (16, 4878085), (20, 3902468), (40, 1951234), (80, 975617), (491, 158960), (982, 79480), (1964, 39740), (1987, 39280), (2455, 31792), (3928, 19870), (3974, 19640), (4910, 15896), (7856, 9935), (7948, 9820)]