8981028

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{227}}^1$

素因数の和:401

約数の個数: 72

約数和(自身を含む): 26225472

約数和(自身を除く): 17244444

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 157, 227, 252, 314, 454, 471, 628, 681, 908, 942, 1099, 1362, 1413, 1589, 1884, 2043, 2198, 2724, 2826, 3178, 3297, 4086, 4396, 4767, 5652, 6356, 6594, 8172, 9534, 9891, 13188, 14301, 19068, 19782, 28602, 35639, 39564, 57204, 71278, 106917, 142556, 213834, 249473, 320751, 427668, 498946, 641502, 748419, 997892, 1283004, 1496838, 2245257, 2993676, 4490514, 8981028]

約数ペア:

[(1, 8981028), (2, 4490514), (3, 2993676), (4, 2245257), (6, 1496838), (7, 1283004), (9, 997892), (12, 748419), (14, 641502), (18, 498946), (21, 427668), (28, 320751), (36, 249473), (42, 213834), (63, 142556), (84, 106917), (126, 71278), (157, 57204), (227, 39564), (252, 35639), (314, 28602), (454, 19782), (471, 19068), (628, 14301), (681, 13188), (908, 9891), (942, 9534), (1099, 8172), (1362, 6594), (1413, 6356), (1589, 5652), (1884, 4767), (2043, 4396), (2198, 4086), (2724, 3297), (2826, 3178)]