81315200

素因数分解:

$2^7\times 5^2\times {\mathrm{25411}}^1$

素因数の和:25435

約数の個数: 48

約数和(自身を含む): 200881860

約数和(自身を除く): 119566660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 25411, 50822, 101644, 127055, 203288, 254110, 406576, 508220, 635275, 813152, 1016440, 1270550, 1626304, 2032880, 2541100, 3252608, 4065760, 5082200, 8131520, 10164400, 16263040, 20328800, 40657600, 81315200]

約数ペア:

[(1, 81315200), (2, 40657600), (4, 20328800), (5, 16263040), (8, 10164400), (10, 8131520), (16, 5082200), (20, 4065760), (25, 3252608), (32, 2541100), (40, 2032880), (50, 1626304), (64, 1270550), (80, 1016440), (100, 813152), (128, 635275), (160, 508220), (200, 406576), (320, 254110), (400, 203288), (640, 127055), (800, 101644), (1600, 50822), (3200, 25411)]