71820800

素因数分解:

$2^9\times 5^2\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:240

約数の個数: 120

約数和(自身を含む): 184696512

約数和(自身を除く): 112875712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 32, 40, 50, 62, 64, 80, 100, 124, 128, 155, 160, 181, 200, 248, 256, 310, 320, 362, 400, 496, 512, 620, 640, 724, 775, 800, 905, 992, 1240, 1280, 1448, 1550, 1600, 1810, 1984, 2480, 2560, 2896, 3100, 3200, 3620, 3968, 4525, 4960, 5611, 5792, 6200, 6400, 7240, 7936, 9050, 9920, 11222, 11584, 12400, 12800, 14480, 15872, 18100, 19840, 22444, 23168, 24800, 28055, 28960, 36200, 39680, 44888, 46336, 49600, 56110, 57920, 72400, 79360, 89776, 92672, 99200, 112220, 115840, 140275, 144800, 179552, 198400, 224440, 231680, 280550, 289600, 359104, 396800, 448880, 463360, 561100, 579200, 718208, 897760, 1122200, 1158400, 1436416, 1795520, 2244400, 2316800, 2872832, 3591040, 4488800, 7182080, 8977600, 14364160, 17955200, 35910400, 71820800]

約数ペア:

[(1, 71820800), (2, 35910400), (4, 17955200), (5, 14364160), (8, 8977600), (10, 7182080), (16, 4488800), (20, 3591040), (25, 2872832), (31, 2316800), (32, 2244400), (40, 1795520), (50, 1436416), (62, 1158400), (64, 1122200), (80, 897760), (100, 718208), (124, 579200), (128, 561100), (155, 463360), (160, 448880), (181, 396800), (200, 359104), (248, 289600), (256, 280550), (310, 231680), (320, 224440), (362, 198400), (400, 179552), (496, 144800), (512, 140275), (620, 115840), (640, 112220), (724, 99200), (775, 92672), (800, 89776), (905, 79360), (992, 72400), (1240, 57920), (1280, 56110), (1448, 49600), (1550, 46336), (1600, 44888), (1810, 39680), (1984, 36200), (2480, 28960), (2560, 28055), (2896, 24800), (3100, 23168), (3200, 22444), (3620, 19840), (3968, 18100), (4525, 15872), (4960, 14480), (5611, 12800), (5792, 12400), (6200, 11584), (6400, 11222), (7240, 9920), (7936, 9050)]