81372420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{2707}}^1$

素因数の和:2889

約数の個数: 72

約数和(自身を含む): 248399424

約数和(自身を除く): 167027004

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 167, 180, 334, 501, 668, 835, 1002, 1503, 1670, 2004, 2505, 2707, 3006, 3340, 5010, 5414, 6012, 7515, 8121, 10020, 10828, 13535, 15030, 16242, 24363, 27070, 30060, 32484, 40605, 48726, 54140, 81210, 97452, 121815, 162420, 243630, 452069, 487260, 904138, 1356207, 1808276, 2260345, 2712414, 4068621, 4520690, 5424828, 6781035, 8137242, 9041380, 13562070, 16274484, 20343105, 27124140, 40686210, 81372420]

約数ペア:

[(1, 81372420), (2, 40686210), (3, 27124140), (4, 20343105), (5, 16274484), (6, 13562070), (9, 9041380), (10, 8137242), (12, 6781035), (15, 5424828), (18, 4520690), (20, 4068621), (30, 2712414), (36, 2260345), (45, 1808276), (60, 1356207), (90, 904138), (167, 487260), (180, 452069), (334, 243630), (501, 162420), (668, 121815), (835, 97452), (1002, 81210), (1503, 54140), (1670, 48726), (2004, 40605), (2505, 32484), (2707, 30060), (3006, 27070), (3340, 24363), (5010, 16242), (5414, 15030), (6012, 13535), (7515, 10828), (8121, 10020)]