28466860

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{419}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 62092800

約数和(自身を除く): 33625940

約数列:

[1, 2, 4, 5, 10, 20, 43, 79, 86, 158, 172, 215, 316, 395, 419, 430, 790, 838, 860, 1580, 1676, 2095, 3397, 4190, 6794, 8380, 13588, 16985, 18017, 33101, 33970, 36034, 66202, 67940, 72068, 90085, 132404, 165505, 180170, 331010, 360340, 662020, 1423343, 2846686, 5693372, 7116715, 14233430, 28466860]

約数ペア:

[(1, 28466860), (2, 14233430), (4, 7116715), (5, 5693372), (10, 2846686), (20, 1423343), (43, 662020), (79, 360340), (86, 331010), (158, 180170), (172, 165505), (215, 132404), (316, 90085), (395, 72068), (419, 67940), (430, 66202), (790, 36034), (838, 33970), (860, 33101), (1580, 18017), (1676, 16985), (2095, 13588), (3397, 8380), (4190, 6794)]