81651200

素因数分解:

$2^9\times 5^2\times {\mathrm{6379}}^1$

素因数の和:6407

約数の個数: 60

約数和(自身を含む): 202328940

約数和(自身を除く): 120677740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 256, 320, 400, 512, 640, 800, 1280, 1600, 2560, 3200, 6379, 6400, 12758, 12800, 25516, 31895, 51032, 63790, 102064, 127580, 159475, 204128, 255160, 318950, 408256, 510320, 637900, 816512, 1020640, 1275800, 1633024, 2041280, 2551600, 3266048, 4082560, 5103200, 8165120, 10206400, 16330240, 20412800, 40825600, 81651200]

約数ペア:

[(1, 81651200), (2, 40825600), (4, 20412800), (5, 16330240), (8, 10206400), (10, 8165120), (16, 5103200), (20, 4082560), (25, 3266048), (32, 2551600), (40, 2041280), (50, 1633024), (64, 1275800), (80, 1020640), (100, 816512), (128, 637900), (160, 510320), (200, 408256), (256, 318950), (320, 255160), (400, 204128), (512, 159475), (640, 127580), (800, 102064), (1280, 63790), (1600, 51032), (2560, 31895), (3200, 25516), (6379, 12800), (6400, 12758)]