20785230

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1471}}^1$

素因数の和:1641

約数の個数: 48

約数和(自身を含む): 54422784

約数和(自身を除く): 33637554

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 157, 314, 471, 785, 942, 1413, 1471, 1570, 2355, 2826, 2942, 4413, 4710, 7065, 7355, 8826, 13239, 14130, 14710, 22065, 26478, 44130, 66195, 132390, 230947, 461894, 692841, 1154735, 1385682, 2078523, 2309470, 3464205, 4157046, 6928410, 10392615, 20785230]

約数ペア:

[(1, 20785230), (2, 10392615), (3, 6928410), (5, 4157046), (6, 3464205), (9, 2309470), (10, 2078523), (15, 1385682), (18, 1154735), (30, 692841), (45, 461894), (90, 230947), (157, 132390), (314, 66195), (471, 44130), (785, 26478), (942, 22065), (1413, 14710), (1471, 14130), (1570, 13239), (2355, 8826), (2826, 7355), (2942, 7065), (4413, 4710)]