256892800

素因数分解:

$2^7\times 5^2\times {\mathrm{80279}}^1$

素因数の和:80303

約数の個数: 48

約数和(自身を含む): 634613400

約数和(自身を除く): 377720600

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, 80279, 160558, 321116, 401395, 642232, 802790, 1284464, 1605580, 2006975, 2568928, 3211160, 4013950, 5137856, 6422320, 8027900, 10275712, 12844640, 16055800, 25689280, 32111600, 51378560, 64223200, 128446400, 256892800]

約数ペア:

[(1, 256892800), (2, 128446400), (4, 64223200), (5, 51378560), (8, 32111600), (10, 25689280), (16, 16055800), (20, 12844640), (25, 10275712), (32, 8027900), (40, 6422320), (50, 5137856), (64, 4013950), (80, 3211160), (100, 2568928), (128, 2006975), (160, 1605580), (200, 1284464), (320, 802790), (400, 642232), (640, 401395), (800, 321116), (1600, 160558), (3200, 80279)]