20648160

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1103}}^1$

素因数の和:1137

約数の個数: 144

約数和(自身を含む): 75950784

約数和(自身を除く): 55302624

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 32, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 96, 104, 117, 120, 130, 144, 156, 160, 180, 195, 208, 234, 240, 260, 288, 312, 360, 390, 416, 468, 480, 520, 585, 624, 720, 780, 936, 1040, 1103, 1170, 1248, 1440, 1560, 1872, 2080, 2206, 2340, 3120, 3309, 3744, 4412, 4680, 5515, 6240, 6618, 8824, 9360, 9927, 11030, 13236, 14339, 16545, 17648, 18720, 19854, 22060, 26472, 28678, 33090, 35296, 39708, 43017, 44120, 49635, 52944, 57356, 66180, 71695, 79416, 86034, 88240, 99270, 105888, 114712, 129051, 132360, 143390, 158832, 172068, 176480, 198540, 215085, 229424, 258102, 264720, 286780, 317664, 344136, 397080, 430170, 458848, 516204, 529440, 573560, 645255, 688272, 794160, 860340, 1032408, 1147120, 1290510, 1376544, 1588320, 1720680, 2064816, 2294240, 2581020, 3441360, 4129632, 5162040, 6882720, 10324080, 20648160]

約数ペア:

[(1, 20648160), (2, 10324080), (3, 6882720), (4, 5162040), (5, 4129632), (6, 3441360), (8, 2581020), (9, 2294240), (10, 2064816), (12, 1720680), (13, 1588320), (15, 1376544), (16, 1290510), (18, 1147120), (20, 1032408), (24, 860340), (26, 794160), (30, 688272), (32, 645255), (36, 573560), (39, 529440), (40, 516204), (45, 458848), (48, 430170), (52, 397080), (60, 344136), (65, 317664), (72, 286780), (78, 264720), (80, 258102), (90, 229424), (96, 215085), (104, 198540), (117, 176480), (120, 172068), (130, 158832), (144, 143390), (156, 132360), (160, 129051), (180, 114712), (195, 105888), (208, 99270), (234, 88240), (240, 86034), (260, 79416), (288, 71695), (312, 66180), (360, 57356), (390, 52944), (416, 49635), (468, 44120), (480, 43017), (520, 39708), (585, 35296), (624, 33090), (720, 28678), (780, 26472), (936, 22060), (1040, 19854), (1103, 18720), (1170, 17648), (1248, 16545), (1440, 14339), (1560, 13236), (1872, 11030), (2080, 9927), (2206, 9360), (2340, 8824), (3120, 6618), (3309, 6240), (3744, 5515), (4412, 4680)]