8981680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^2\times {\mathrm{311}}^1$

素因数の和:362

約数の個数: 60

約数和(自身を含む): 22110192

約数和(自身を除く): 13128512

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 311, 361, 380, 622, 722, 760, 1244, 1444, 1520, 1555, 1805, 2488, 2888, 3110, 3610, 4976, 5776, 5909, 6220, 7220, 11818, 12440, 14440, 23636, 24880, 28880, 29545, 47272, 59090, 94544, 112271, 118180, 224542, 236360, 449084, 472720, 561355, 898168, 1122710, 1796336, 2245420, 4490840, 8981680]

約数ペア:

[(1, 8981680), (2, 4490840), (4, 2245420), (5, 1796336), (8, 1122710), (10, 898168), (16, 561355), (19, 472720), (20, 449084), (38, 236360), (40, 224542), (76, 118180), (80, 112271), (95, 94544), (152, 59090), (190, 47272), (304, 29545), (311, 28880), (361, 24880), (380, 23636), (622, 14440), (722, 12440), (760, 11818), (1244, 7220), (1444, 6220), (1520, 5909), (1555, 5776), (1805, 4976), (2488, 3610), (2888, 3110)]