77985640

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:179

約数の個数: 128

約数和(自身を含む): 196992000

約数和(自身を除く): 119006360

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 29, 37, 40, 46, 58, 74, 79, 92, 115, 116, 145, 148, 158, 184, 185, 230, 232, 290, 296, 316, 370, 395, 460, 580, 632, 667, 740, 790, 851, 920, 1073, 1160, 1334, 1480, 1580, 1702, 1817, 2146, 2291, 2668, 2923, 3160, 3335, 3404, 3634, 4255, 4292, 4582, 5336, 5365, 5846, 6670, 6808, 7268, 8510, 8584, 9085, 9164, 10730, 11455, 11692, 13340, 14536, 14615, 17020, 18170, 18328, 21460, 22910, 23384, 24679, 26680, 29230, 34040, 36340, 42920, 45820, 49358, 52693, 58460, 67229, 72680, 84767, 91640, 98716, 105386, 116920, 123395, 134458, 169534, 197432, 210772, 246790, 263465, 268916, 336145, 339068, 421544, 423835, 493580, 526930, 537832, 672290, 678136, 847670, 987160, 1053860, 1344580, 1695340, 1949641, 2107720, 2689160, 3390680, 3899282, 7798564, 9748205, 15597128, 19496410, 38992820, 77985640]

約数ペア:

[(1, 77985640), (2, 38992820), (4, 19496410), (5, 15597128), (8, 9748205), (10, 7798564), (20, 3899282), (23, 3390680), (29, 2689160), (37, 2107720), (40, 1949641), (46, 1695340), (58, 1344580), (74, 1053860), (79, 987160), (92, 847670), (115, 678136), (116, 672290), (145, 537832), (148, 526930), (158, 493580), (184, 423835), (185, 421544), (230, 339068), (232, 336145), (290, 268916), (296, 263465), (316, 246790), (370, 210772), (395, 197432), (460, 169534), (580, 134458), (632, 123395), (667, 116920), (740, 105386), (790, 98716), (851, 91640), (920, 84767), (1073, 72680), (1160, 67229), (1334, 58460), (1480, 52693), (1580, 49358), (1702, 45820), (1817, 42920), (2146, 36340), (2291, 34040), (2668, 29230), (2923, 26680), (3160, 24679), (3335, 23384), (3404, 22910), (3634, 21460), (4255, 18328), (4292, 18170), (4582, 17020), (5336, 14615), (5365, 14536), (5846, 13340), (6670, 11692), (6808, 11455), (7268, 10730), (8510, 9164), (8584, 9085)]