20966580

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{947}}^1$

素因数の和:1006

約数の個数: 96

約数和(自身を含む): 66890880

約数和(自身を除く): 45924300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 41, 45, 54, 60, 82, 90, 108, 123, 135, 164, 180, 205, 246, 270, 369, 410, 492, 540, 615, 738, 820, 947, 1107, 1230, 1476, 1845, 1894, 2214, 2460, 2841, 3690, 3788, 4428, 4735, 5535, 5682, 7380, 8523, 9470, 11070, 11364, 14205, 17046, 18940, 22140, 25569, 28410, 34092, 38827, 42615, 51138, 56820, 77654, 85230, 102276, 116481, 127845, 155308, 170460, 194135, 232962, 255690, 349443, 388270, 465924, 511380, 582405, 698886, 776540, 1048329, 1164810, 1397772, 1747215, 2096658, 2329620, 3494430, 4193316, 5241645, 6988860, 10483290, 20966580]

約数ペア:

[(1, 20966580), (2, 10483290), (3, 6988860), (4, 5241645), (5, 4193316), (6, 3494430), (9, 2329620), (10, 2096658), (12, 1747215), (15, 1397772), (18, 1164810), (20, 1048329), (27, 776540), (30, 698886), (36, 582405), (41, 511380), (45, 465924), (54, 388270), (60, 349443), (82, 255690), (90, 232962), (108, 194135), (123, 170460), (135, 155308), (164, 127845), (180, 116481), (205, 102276), (246, 85230), (270, 77654), (369, 56820), (410, 51138), (492, 42615), (540, 38827), (615, 34092), (738, 28410), (820, 25569), (947, 22140), (1107, 18940), (1230, 17046), (1476, 14205), (1845, 11364), (1894, 11070), (2214, 9470), (2460, 8523), (2841, 7380), (3690, 5682), (3788, 5535), (4428, 4735)]