20967840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14561}}^1$

素因数の和:14582

約数の個数: 72

約数和(自身を含む): 71557668

約数和(自身を除く): 50589828

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14561, 29122, 43683, 58244, 72805, 87366, 116488, 131049, 145610, 174732, 218415, 232976, 262098, 291220, 349464, 436830, 465952, 524196, 582440, 655245, 698928, 873660, 1048392, 1164880, 1310490, 1397856, 1747320, 2096784, 2329760, 2620980, 3494640, 4193568, 5241960, 6989280, 10483920, 20967840]

約数ペア:

[(1, 20967840), (2, 10483920), (3, 6989280), (4, 5241960), (5, 4193568), (6, 3494640), (8, 2620980), (9, 2329760), (10, 2096784), (12, 1747320), (15, 1397856), (16, 1310490), (18, 1164880), (20, 1048392), (24, 873660), (30, 698928), (32, 655245), (36, 582440), (40, 524196), (45, 465952), (48, 436830), (60, 349464), (72, 291220), (80, 262098), (90, 232976), (96, 218415), (120, 174732), (144, 145610), (160, 131049), (180, 116488), (240, 87366), (288, 72805), (360, 58244), (480, 43683), (720, 29122), (1440, 14561)]