206977960

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{105601}}^1$

素因数の和:105626

約数の個数: 48

約数和(自身を含む): 541738260

約数和(自身を除く): 334760300

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 105601, 211202, 422404, 528005, 739207, 844808, 1056010, 1478414, 2112020, 2956828, 3696035, 4224040, 5174449, 5913656, 7392070, 10348898, 14784140, 20697796, 25872245, 29568280, 41395592, 51744490, 103488980, 206977960]

約数ペア:

[(1, 206977960), (2, 103488980), (4, 51744490), (5, 41395592), (7, 29568280), (8, 25872245), (10, 20697796), (14, 14784140), (20, 10348898), (28, 7392070), (35, 5913656), (40, 5174449), (49, 4224040), (56, 3696035), (70, 2956828), (98, 2112020), (140, 1478414), (196, 1056010), (245, 844808), (280, 739207), (392, 528005), (490, 422404), (980, 211202), (1960, 105601)]