20177085920

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{593}}^1\times {\mathrm{1951}}^1$

素因数の和:2668

約数の個数: 96

約数和(自身を含む): 48211511040

約数和(自身を除く): 28034425120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 593, 872, 1090, 1186, 1744, 1951, 2180, 2372, 2965, 3488, 3902, 4360, 4744, 5930, 7804, 8720, 9488, 9755, 11860, 15608, 17440, 18976, 19510, 23720, 31216, 39020, 47440, 62432, 64637, 78040, 94880, 129274, 156080, 212659, 258548, 312160, 323185, 425318, 517096, 646370, 850636, 1034192, 1063295, 1156943, 1292740, 1701272, 2068384, 2126590, 2313886, 2585480, 3402544, 4253180, 4627772, 5170960, 5784715, 6805088, 8506360, 9255544, 10341920, 11569430, 17012720, 18511088, 23138860, 34025440, 37022176, 46277720, 92555440, 126106787, 185110880, 252213574, 504427148, 630533935, 1008854296, 1261067870, 2017708592, 2522135740, 4035417184, 5044271480, 10088542960, 20177085920]

約数ペア:

[(1, 20177085920), (2, 10088542960), (4, 5044271480), (5, 4035417184), (8, 2522135740), (10, 2017708592), (16, 1261067870), (20, 1008854296), (32, 630533935), (40, 504427148), (80, 252213574), (109, 185110880), (160, 126106787), (218, 92555440), (436, 46277720), (545, 37022176), (593, 34025440), (872, 23138860), (1090, 18511088), (1186, 17012720), (1744, 11569430), (1951, 10341920), (2180, 9255544), (2372, 8506360), (2965, 6805088), (3488, 5784715), (3902, 5170960), (4360, 4627772), (4744, 4253180), (5930, 3402544), (7804, 2585480), (8720, 2313886), (9488, 2126590), (9755, 2068384), (11860, 1701272), (15608, 1292740), (17440, 1156943), (18976, 1063295), (19510, 1034192), (23720, 850636), (31216, 646370), (39020, 517096), (47440, 425318), (62432, 323185), (64637, 312160), (78040, 258548), (94880, 212659), (129274, 156080)]