20348046980

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{383}}^1\times {\mathrm{156259}}^1$

素因数の和:156668

約数の個数: 48

約数和(自身を含む): 45362903040

約数和(自身を除く): 25014856060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 383, 766, 1532, 1915, 3830, 6511, 7660, 13022, 26044, 32555, 65110, 130220, 156259, 312518, 625036, 781295, 1562590, 2656403, 3125180, 5312806, 10625612, 13282015, 26564030, 53128060, 59847197, 119694394, 239388788, 299235985, 598471970, 1017402349, 1196943940, 2034804698, 4069609396, 5087011745, 10174023490, 20348046980]

約数ペア:

[(1, 20348046980), (2, 10174023490), (4, 5087011745), (5, 4069609396), (10, 2034804698), (17, 1196943940), (20, 1017402349), (34, 598471970), (68, 299235985), (85, 239388788), (170, 119694394), (340, 59847197), (383, 53128060), (766, 26564030), (1532, 13282015), (1915, 10625612), (3830, 5312806), (6511, 3125180), (7660, 2656403), (13022, 1562590), (26044, 781295), (32555, 625036), (65110, 312518), (130220, 156259)]