9998180

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{317}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 22438080

約数和(自身を除く): 12439900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 83, 95, 166, 190, 317, 332, 380, 415, 634, 830, 1268, 1577, 1585, 1660, 3154, 3170, 6023, 6308, 6340, 7885, 12046, 15770, 24092, 26311, 30115, 31540, 52622, 60230, 105244, 120460, 131555, 263110, 499909, 526220, 999818, 1999636, 2499545, 4999090, 9998180]

約数ペア:

[(1, 9998180), (2, 4999090), (4, 2499545), (5, 1999636), (10, 999818), (19, 526220), (20, 499909), (38, 263110), (76, 131555), (83, 120460), (95, 105244), (166, 60230), (190, 52622), (317, 31540), (332, 30115), (380, 26311), (415, 24092), (634, 15770), (830, 12046), (1268, 7885), (1577, 6340), (1585, 6308), (1660, 6023), (3154, 3170)]