81022480

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1879}}^1$

素因数の和:1917

約数の個数: 120

約数和(自身を含む): 239181120

約数和(自身を除く): 158158640

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 80, 88, 98, 110, 112, 140, 154, 176, 196, 220, 245, 280, 308, 385, 392, 440, 490, 539, 560, 616, 770, 784, 880, 980, 1078, 1232, 1540, 1879, 1960, 2156, 2695, 3080, 3758, 3920, 4312, 5390, 6160, 7516, 8624, 9395, 10780, 13153, 15032, 18790, 20669, 21560, 26306, 30064, 37580, 41338, 43120, 52612, 65765, 75160, 82676, 92071, 103345, 105224, 131530, 144683, 150320, 165352, 184142, 206690, 210448, 263060, 289366, 330704, 368284, 413380, 460355, 526120, 578732, 723415, 736568, 826760, 920710, 1012781, 1052240, 1157464, 1446830, 1473136, 1653520, 1841420, 2025562, 2314928, 2893660, 3682840, 4051124, 5063905, 5787320, 7365680, 8102248, 10127810, 11574640, 16204496, 20255620, 40511240, 81022480]

約数ペア:

[(1, 81022480), (2, 40511240), (4, 20255620), (5, 16204496), (7, 11574640), (8, 10127810), (10, 8102248), (11, 7365680), (14, 5787320), (16, 5063905), (20, 4051124), (22, 3682840), (28, 2893660), (35, 2314928), (40, 2025562), (44, 1841420), (49, 1653520), (55, 1473136), (56, 1446830), (70, 1157464), (77, 1052240), (80, 1012781), (88, 920710), (98, 826760), (110, 736568), (112, 723415), (140, 578732), (154, 526120), (176, 460355), (196, 413380), (220, 368284), (245, 330704), (280, 289366), (308, 263060), (385, 210448), (392, 206690), (440, 184142), (490, 165352), (539, 150320), (560, 144683), (616, 131530), (770, 105224), (784, 103345), (880, 92071), (980, 82676), (1078, 75160), (1232, 65765), (1540, 52612), (1879, 43120), (1960, 41338), (2156, 37580), (2695, 30064), (3080, 26306), (3758, 21560), (3920, 20669), (4312, 18790), (5390, 15032), (6160, 13153), (7516, 10780), (8624, 9395)]