8284400

素因数分解:

$2^4\times 5^2\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:306

約数の個数: 60

約数和(自身を含む): 20181000

約数和(自身を除く): 11896600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 139, 149, 200, 278, 298, 400, 556, 596, 695, 745, 1112, 1192, 1390, 1490, 2224, 2384, 2780, 2980, 3475, 3725, 5560, 5960, 6950, 7450, 11120, 11920, 13900, 14900, 20711, 27800, 29800, 41422, 55600, 59600, 82844, 103555, 165688, 207110, 331376, 414220, 517775, 828440, 1035550, 1656880, 2071100, 4142200, 8284400]

約数ペア:

[(1, 8284400), (2, 4142200), (4, 2071100), (5, 1656880), (8, 1035550), (10, 828440), (16, 517775), (20, 414220), (25, 331376), (40, 207110), (50, 165688), (80, 103555), (100, 82844), (139, 59600), (149, 55600), (200, 41422), (278, 29800), (298, 27800), (400, 20711), (556, 14900), (596, 13900), (695, 11920), (745, 11120), (1112, 7450), (1192, 6950), (1390, 5960), (1490, 5560), (2224, 3725), (2384, 3475), (2780, 2980)]