20945520

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9697}}^1$

素因数の和:9719

約数の個数: 80

約数和(自身を含む): 72153120

約数和(自身を除く): 51207600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9697, 19394, 29091, 38788, 48485, 58182, 77576, 87273, 96970, 116364, 145455, 155152, 174546, 193940, 232728, 261819, 290910, 349092, 387880, 436365, 465456, 523638, 581820, 698184, 775760, 872730, 1047276, 1163640, 1309095, 1396368, 1745460, 2094552, 2327280, 2618190, 3490920, 4189104, 5236380, 6981840, 10472760, 20945520]

約数ペア:

[(1, 20945520), (2, 10472760), (3, 6981840), (4, 5236380), (5, 4189104), (6, 3490920), (8, 2618190), (9, 2327280), (10, 2094552), (12, 1745460), (15, 1396368), (16, 1309095), (18, 1163640), (20, 1047276), (24, 872730), (27, 775760), (30, 698184), (36, 581820), (40, 523638), (45, 465456), (48, 436365), (54, 387880), (60, 349092), (72, 290910), (80, 261819), (90, 232728), (108, 193940), (120, 174546), (135, 155152), (144, 145455), (180, 116364), (216, 96970), (240, 87273), (270, 77576), (360, 58182), (432, 48485), (540, 38788), (720, 29091), (1080, 19394), (2160, 9697)]