20176385440

素因数分解:

$2^5\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1151}}^1\times {\mathrm{1231}}^1$

素因数の和:2486

約数の個数: 96

約数和(自身を含む): 48283361280

約数和(自身を除く): 28106975840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 89, 160, 178, 356, 445, 712, 890, 1151, 1231, 1424, 1780, 2302, 2462, 2848, 3560, 4604, 4924, 5755, 6155, 7120, 9208, 9848, 11510, 12310, 14240, 18416, 19696, 23020, 24620, 36832, 39392, 46040, 49240, 92080, 98480, 102439, 109559, 184160, 196960, 204878, 219118, 409756, 438236, 512195, 547795, 819512, 876472, 1024390, 1095590, 1416881, 1639024, 1752944, 2048780, 2191180, 2833762, 3278048, 3505888, 4097560, 4382360, 5667524, 7084405, 8195120, 8764720, 11335048, 14168810, 16390240, 17529440, 22670096, 28337620, 45340192, 56675240, 113350480, 126102409, 226700960, 252204818, 504409636, 630512045, 1008819272, 1261024090, 2017638544, 2522048180, 4035277088, 5044096360, 10088192720, 20176385440]

約数ペア:

[(1, 20176385440), (2, 10088192720), (4, 5044096360), (5, 4035277088), (8, 2522048180), (10, 2017638544), (16, 1261024090), (20, 1008819272), (32, 630512045), (40, 504409636), (80, 252204818), (89, 226700960), (160, 126102409), (178, 113350480), (356, 56675240), (445, 45340192), (712, 28337620), (890, 22670096), (1151, 17529440), (1231, 16390240), (1424, 14168810), (1780, 11335048), (2302, 8764720), (2462, 8195120), (2848, 7084405), (3560, 5667524), (4604, 4382360), (4924, 4097560), (5755, 3505888), (6155, 3278048), (7120, 2833762), (9208, 2191180), (9848, 2048780), (11510, 1752944), (12310, 1639024), (14240, 1416881), (18416, 1095590), (19696, 1024390), (23020, 876472), (24620, 819512), (36832, 547795), (39392, 512195), (46040, 438236), (49240, 409756), (92080, 219118), (98480, 204878), (102439, 196960), (109559, 184160)]