19420020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{35963}}^1$

素因数の和:35981

約数の個数: 48

約数和(自身を含む): 60419520

約数和(自身を除く): 40999500

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, 35963, 71926, 107889, 143852, 179815, 215778, 323667, 359630, 431556, 539445, 647334, 719260, 971001, 1078890, 1294668, 1618335, 1942002, 2157780, 3236670, 3884004, 4855005, 6473340, 9710010, 19420020]

約数ペア:

[(1, 19420020), (2, 9710010), (3, 6473340), (4, 4855005), (5, 3884004), (6, 3236670), (9, 2157780), (10, 1942002), (12, 1618335), (15, 1294668), (18, 1078890), (20, 971001), (27, 719260), (30, 647334), (36, 539445), (45, 431556), (54, 359630), (60, 323667), (90, 215778), (108, 179815), (135, 143852), (180, 107889), (270, 71926), (540, 35963)]