4490840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{311}}^1$

素因数の和:360

約数の個数: 48

約数和(自身を含む): 10698480

約数和(自身を除く): 6207640

約数列:

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

約数ペア:

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