20751628

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 40449024

約数和(自身を除く): 19697396

約数列:

[1, 2, 4, 17, 34, 43, 47, 68, 86, 94, 151, 172, 188, 302, 604, 731, 799, 1462, 1598, 2021, 2567, 2924, 3196, 4042, 5134, 6493, 7097, 8084, 10268, 12986, 14194, 25972, 28388, 34357, 68714, 110381, 120649, 137428, 220762, 241298, 305171, 441524, 482596, 610342, 1220684, 5187907, 10375814, 20751628]

約数ペア:

[(1, 20751628), (2, 10375814), (4, 5187907), (17, 1220684), (34, 610342), (43, 482596), (47, 441524), (68, 305171), (86, 241298), (94, 220762), (151, 137428), (172, 120649), (188, 110381), (302, 68714), (604, 34357), (731, 28388), (799, 25972), (1462, 14194), (1598, 12986), (2021, 10268), (2567, 8084), (2924, 7097), (3196, 6493), (4042, 5134)]