6656840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{461}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 15841980

約数和(自身を除く): 9185140

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 461, 722, 760, 922, 1444, 1805, 1844, 2305, 2888, 3610, 3688, 4610, 7220, 8759, 9220, 14440, 17518, 18440, 35036, 43795, 70072, 87590, 166421, 175180, 332842, 350360, 665684, 832105, 1331368, 1664210, 3328420, 6656840]

約数ペア:

[(1, 6656840), (2, 3328420), (4, 1664210), (5, 1331368), (8, 832105), (10, 665684), (19, 350360), (20, 332842), (38, 175180), (40, 166421), (76, 87590), (95, 70072), (152, 43795), (190, 35036), (361, 18440), (380, 17518), (461, 14440), (722, 9220), (760, 8759), (922, 7220), (1444, 4610), (1805, 3688), (1844, 3610), (2305, 2888)]