81085120

素因数分解:

$2^6\times 5^1\times {\mathrm{23}}^2\times {\mathrm{479}}^1$

素因数の和:542

約数の個数: 84

約数和(自身を含む): 202265280

約数和(自身を除く): 121180160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 160, 184, 230, 320, 368, 460, 479, 529, 736, 920, 958, 1058, 1472, 1840, 1916, 2116, 2395, 2645, 3680, 3832, 4232, 4790, 5290, 7360, 7664, 8464, 9580, 10580, 11017, 15328, 16928, 19160, 21160, 22034, 30656, 33856, 38320, 42320, 44068, 55085, 76640, 84640, 88136, 110170, 153280, 169280, 176272, 220340, 253391, 352544, 440680, 506782, 705088, 881360, 1013564, 1266955, 1762720, 2027128, 2533910, 3525440, 4054256, 5067820, 8108512, 10135640, 16217024, 20271280, 40542560, 81085120]

約数ペア:

[(1, 81085120), (2, 40542560), (4, 20271280), (5, 16217024), (8, 10135640), (10, 8108512), (16, 5067820), (20, 4054256), (23, 3525440), (32, 2533910), (40, 2027128), (46, 1762720), (64, 1266955), (80, 1013564), (92, 881360), (115, 705088), (160, 506782), (184, 440680), (230, 352544), (320, 253391), (368, 220340), (460, 176272), (479, 169280), (529, 153280), (736, 110170), (920, 88136), (958, 84640), (1058, 76640), (1472, 55085), (1840, 44068), (1916, 42320), (2116, 38320), (2395, 33856), (2645, 30656), (3680, 22034), (3832, 21160), (4232, 19160), (4790, 16928), (5290, 15328), (7360, 11017), (7664, 10580), (8464, 9580)]