208458540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{21851}}^1$

素因数の和:21919

約数の個数: 72

約数和(自身を含む): 644284368

約数和(自身を除く): 435825828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 318, 477, 530, 636, 795, 954, 1060, 1590, 1908, 2385, 3180, 4770, 9540, 21851, 43702, 65553, 87404, 109255, 131106, 196659, 218510, 262212, 327765, 393318, 437020, 655530, 786636, 983295, 1158103, 1311060, 1966590, 2316206, 3474309, 3933180, 4632412, 5790515, 6948618, 10422927, 11581030, 13897236, 17371545, 20845854, 23162060, 34743090, 41691708, 52114635, 69486180, 104229270, 208458540]

約数ペア:

[(1, 208458540), (2, 104229270), (3, 69486180), (4, 52114635), (5, 41691708), (6, 34743090), (9, 23162060), (10, 20845854), (12, 17371545), (15, 13897236), (18, 11581030), (20, 10422927), (30, 6948618), (36, 5790515), (45, 4632412), (53, 3933180), (60, 3474309), (90, 2316206), (106, 1966590), (159, 1311060), (180, 1158103), (212, 983295), (265, 786636), (318, 655530), (477, 437020), (530, 393318), (636, 327765), (795, 262212), (954, 218510), (1060, 196659), (1590, 131106), (1908, 109255), (2385, 87404), (3180, 65553), (4770, 43702), (9540, 21851)]