20884560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{503}}^1$

素因数の和:692

約数の個数: 80

約数和(自身を含む): 65245824

約数和(自身を除く): 44361264

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 173, 240, 346, 503, 519, 692, 865, 1006, 1038, 1384, 1509, 1730, 2012, 2076, 2515, 2595, 2768, 3018, 3460, 4024, 4152, 5030, 5190, 6036, 6920, 7545, 8048, 8304, 10060, 10380, 12072, 13840, 15090, 20120, 20760, 24144, 30180, 40240, 41520, 60360, 87019, 120720, 174038, 261057, 348076, 435095, 522114, 696152, 870190, 1044228, 1305285, 1392304, 1740380, 2088456, 2610570, 3480760, 4176912, 5221140, 6961520, 10442280, 20884560]

約数ペア:

[(1, 20884560), (2, 10442280), (3, 6961520), (4, 5221140), (5, 4176912), (6, 3480760), (8, 2610570), (10, 2088456), (12, 1740380), (15, 1392304), (16, 1305285), (20, 1044228), (24, 870190), (30, 696152), (40, 522114), (48, 435095), (60, 348076), (80, 261057), (120, 174038), (173, 120720), (240, 87019), (346, 60360), (503, 41520), (519, 40240), (692, 30180), (865, 24144), (1006, 20760), (1038, 20120), (1384, 15090), (1509, 13840), (1730, 12072), (2012, 10380), (2076, 10060), (2515, 8304), (2595, 8048), (2768, 7545), (3018, 6920), (3460, 6036), (4024, 5190), (4152, 5030)]