81001680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:273

約数の個数: 160

約数和(自身を含む): 263983104

約数和(自身を除く): 182981424

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 43, 47, 48, 60, 80, 86, 94, 120, 129, 141, 167, 172, 188, 215, 235, 240, 258, 282, 334, 344, 376, 430, 470, 501, 516, 564, 645, 668, 688, 705, 752, 835, 860, 940, 1002, 1032, 1128, 1290, 1336, 1410, 1670, 1720, 1880, 2004, 2021, 2064, 2256, 2505, 2580, 2672, 2820, 3340, 3440, 3760, 4008, 4042, 5010, 5160, 5640, 6063, 6680, 7181, 7849, 8016, 8084, 10020, 10105, 10320, 11280, 12126, 13360, 14362, 15698, 16168, 20040, 20210, 21543, 23547, 24252, 28724, 30315, 31396, 32336, 35905, 39245, 40080, 40420, 43086, 47094, 48504, 57448, 60630, 62792, 71810, 78490, 80840, 86172, 94188, 97008, 107715, 114896, 117735, 121260, 125584, 143620, 156980, 161680, 172344, 188376, 215430, 235470, 242520, 287240, 313960, 337507, 344688, 376752, 430860, 470940, 485040, 574480, 627920, 675014, 861720, 941880, 1012521, 1350028, 1687535, 1723440, 1883760, 2025042, 2700056, 3375070, 4050084, 5062605, 5400112, 6750140, 8100168, 10125210, 13500280, 16200336, 20250420, 27000560, 40500840, 81001680]

約数ペア:

[(1, 81001680), (2, 40500840), (3, 27000560), (4, 20250420), (5, 16200336), (6, 13500280), (8, 10125210), (10, 8100168), (12, 6750140), (15, 5400112), (16, 5062605), (20, 4050084), (24, 3375070), (30, 2700056), (40, 2025042), (43, 1883760), (47, 1723440), (48, 1687535), (60, 1350028), (80, 1012521), (86, 941880), (94, 861720), (120, 675014), (129, 627920), (141, 574480), (167, 485040), (172, 470940), (188, 430860), (215, 376752), (235, 344688), (240, 337507), (258, 313960), (282, 287240), (334, 242520), (344, 235470), (376, 215430), (430, 188376), (470, 172344), (501, 161680), (516, 156980), (564, 143620), (645, 125584), (668, 121260), (688, 117735), (705, 114896), (752, 107715), (835, 97008), (860, 94188), (940, 86172), (1002, 80840), (1032, 78490), (1128, 71810), (1290, 62792), (1336, 60630), (1410, 57448), (1670, 48504), (1720, 47094), (1880, 43086), (2004, 40420), (2021, 40080), (2064, 39245), (2256, 35905), (2505, 32336), (2580, 31396), (2672, 30315), (2820, 28724), (3340, 24252), (3440, 23547), (3760, 21543), (4008, 20210), (4042, 20040), (5010, 16168), (5160, 15698), (5640, 14362), (6063, 13360), (6680, 12126), (7181, 11280), (7849, 10320), (8016, 10105), (8084, 10020)]