81489780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{150907}}^1$

素因数の和:150925

約数の個数: 48

約数和(自身を含む): 253525440

約数和(自身を除く): 172035660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 150907, 301814, 452721, 603628, 754535, 905442, 1358163, 1509070, 1810884, 2263605, 2716326, 3018140, 4074489, 4527210, 5432652, 6790815, 8148978, 9054420, 13581630, 16297956, 20372445, 27163260, 40744890, 81489780]

約数ペア:

[(1, 81489780), (2, 40744890), (3, 27163260), (4, 20372445), (5, 16297956), (6, 13581630), (9, 9054420), (10, 8148978), (12, 6790815), (15, 5432652), (18, 4527210), (20, 4074489), (27, 3018140), (30, 2716326), (36, 2263605), (45, 1810884), (54, 1509070), (60, 1358163), (90, 905442), (108, 754535), (135, 603628), (180, 452721), (270, 301814), (540, 150907)]