13440740

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{479}}^1$

素因数の和:572

約数の個数: 48

約数和(自身を含む): 29998080

約数和(自身を除く): 16557340

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 61, 92, 115, 122, 230, 244, 305, 460, 479, 610, 958, 1220, 1403, 1916, 2395, 2806, 4790, 5612, 7015, 9580, 11017, 14030, 22034, 28060, 29219, 44068, 55085, 58438, 110170, 116876, 146095, 220340, 292190, 584380, 672037, 1344074, 2688148, 3360185, 6720370, 13440740]

約数ペア:

[(1, 13440740), (2, 6720370), (4, 3360185), (5, 2688148), (10, 1344074), (20, 672037), (23, 584380), (46, 292190), (61, 220340), (92, 146095), (115, 116876), (122, 110170), (230, 58438), (244, 55085), (305, 44068), (460, 29219), (479, 28060), (610, 22034), (958, 14030), (1220, 11017), (1403, 9580), (1916, 7015), (2395, 5612), (2806, 4790)]