20041440

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{971}}^1$

素因数の和:1032

約数の個数: 96

約数和(自身を含む): 64665216

約数和(自身を除く): 44623776

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 80, 86, 96, 120, 129, 160, 172, 215, 240, 258, 344, 430, 480, 516, 645, 688, 860, 971, 1032, 1290, 1376, 1720, 1942, 2064, 2580, 2913, 3440, 3884, 4128, 4855, 5160, 5826, 6880, 7768, 9710, 10320, 11652, 14565, 15536, 19420, 20640, 23304, 29130, 31072, 38840, 41753, 46608, 58260, 77680, 83506, 93216, 116520, 125259, 155360, 167012, 208765, 233040, 250518, 334024, 417530, 466080, 501036, 626295, 668048, 835060, 1002072, 1252590, 1336096, 1670120, 2004144, 2505180, 3340240, 4008288, 5010360, 6680480, 10020720, 20041440]

約数ペア:

[(1, 20041440), (2, 10020720), (3, 6680480), (4, 5010360), (5, 4008288), (6, 3340240), (8, 2505180), (10, 2004144), (12, 1670120), (15, 1336096), (16, 1252590), (20, 1002072), (24, 835060), (30, 668048), (32, 626295), (40, 501036), (43, 466080), (48, 417530), (60, 334024), (80, 250518), (86, 233040), (96, 208765), (120, 167012), (129, 155360), (160, 125259), (172, 116520), (215, 93216), (240, 83506), (258, 77680), (344, 58260), (430, 46608), (480, 41753), (516, 38840), (645, 31072), (688, 29130), (860, 23304), (971, 20640), (1032, 19420), (1290, 15536), (1376, 14565), (1720, 11652), (1942, 10320), (2064, 9710), (2580, 7768), (2913, 6880), (3440, 5826), (3884, 5160), (4128, 4855)]