278895780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{461}}^1\times {\mathrm{3361}}^1$

素因数の和:3837

約数の個数: 72

約数和(自身を含む): 848071224

約数和(自身を除く): 569175444

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 461, 922, 1383, 1844, 2305, 2766, 3361, 4149, 4610, 5532, 6722, 6915, 8298, 9220, 10083, 13444, 13830, 16596, 16805, 20166, 20745, 27660, 30249, 33610, 40332, 41490, 50415, 60498, 67220, 82980, 100830, 120996, 151245, 201660, 302490, 604980, 1549421, 3098842, 4648263, 6197684, 7747105, 9296526, 13944789, 15494210, 18593052, 23241315, 27889578, 30988420, 46482630, 55779156, 69723945, 92965260, 139447890, 278895780]

約数ペア:

[(1, 278895780), (2, 139447890), (3, 92965260), (4, 69723945), (5, 55779156), (6, 46482630), (9, 30988420), (10, 27889578), (12, 23241315), (15, 18593052), (18, 15494210), (20, 13944789), (30, 9296526), (36, 7747105), (45, 6197684), (60, 4648263), (90, 3098842), (180, 1549421), (461, 604980), (922, 302490), (1383, 201660), (1844, 151245), (2305, 120996), (2766, 100830), (3361, 82980), (4149, 67220), (4610, 60498), (5532, 50415), (6722, 41490), (6915, 40332), (8298, 33610), (9220, 30249), (10083, 27660), (13444, 20745), (13830, 20166), (16596, 16805)]