12681400

素因数分解:

$2^3\times 5^2\times {\mathrm{163}}^1\times {\mathrm{389}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 29741400

約数和(自身を除く): 17060000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 163, 200, 326, 389, 652, 778, 815, 1304, 1556, 1630, 1945, 3112, 3260, 3890, 4075, 6520, 7780, 8150, 9725, 15560, 16300, 19450, 32600, 38900, 63407, 77800, 126814, 253628, 317035, 507256, 634070, 1268140, 1585175, 2536280, 3170350, 6340700, 12681400]

約数ペア:

[(1, 12681400), (2, 6340700), (4, 3170350), (5, 2536280), (8, 1585175), (10, 1268140), (20, 634070), (25, 507256), (40, 317035), (50, 253628), (100, 126814), (163, 77800), (200, 63407), (326, 38900), (389, 32600), (652, 19450), (778, 16300), (815, 15560), (1304, 9725), (1556, 8150), (1630, 7780), (1945, 6520), (3112, 4075), (3260, 3890)]