20607620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1993}}^1$

素因数の和:2060

約数の個数: 48

約数和(自身を含む): 48238848

約数和(自身を除く): 27631228

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 188, 220, 235, 470, 517, 940, 1034, 1993, 2068, 2585, 3986, 5170, 7972, 9965, 10340, 19930, 21923, 39860, 43846, 87692, 93671, 109615, 187342, 219230, 374684, 438460, 468355, 936710, 1030381, 1873420, 2060762, 4121524, 5151905, 10303810, 20607620]

約数ペア:

[(1, 20607620), (2, 10303810), (4, 5151905), (5, 4121524), (10, 2060762), (11, 1873420), (20, 1030381), (22, 936710), (44, 468355), (47, 438460), (55, 374684), (94, 219230), (110, 187342), (188, 109615), (220, 93671), (235, 87692), (470, 43846), (517, 39860), (940, 21923), (1034, 19930), (1993, 10340), (2068, 9965), (2585, 7972), (3986, 5170)]