80919180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{4451}}^1$

素因数の和:4567

約数の個数: 72

約数和(自身を含む): 247940784

約数和(自身を除く): 167021604

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1212, 1515, 1818, 2020, 3030, 3636, 4451, 4545, 6060, 8902, 9090, 13353, 17804, 18180, 22255, 26706, 40059, 44510, 53412, 66765, 80118, 89020, 133530, 160236, 200295, 267060, 400590, 449551, 801180, 899102, 1348653, 1798204, 2247755, 2697306, 4045959, 4495510, 5394612, 6743265, 8091918, 8991020, 13486530, 16183836, 20229795, 26973060, 40459590, 80919180]

約数ペア:

[(1, 80919180), (2, 40459590), (3, 26973060), (4, 20229795), (5, 16183836), (6, 13486530), (9, 8991020), (10, 8091918), (12, 6743265), (15, 5394612), (18, 4495510), (20, 4045959), (30, 2697306), (36, 2247755), (45, 1798204), (60, 1348653), (90, 899102), (101, 801180), (180, 449551), (202, 400590), (303, 267060), (404, 200295), (505, 160236), (606, 133530), (909, 89020), (1010, 80118), (1212, 66765), (1515, 53412), (1818, 44510), (2020, 40059), (3030, 26706), (3636, 22255), (4451, 18180), (4545, 17804), (6060, 13353), (8902, 9090)]