208543360

素因数分解:

$2^7\times 5^1\times {\mathrm{325849}}^1$

素因数の和:325868

約数の個数: 32

約数和(自身を含む): 498550500

約数和(自身を除く): 290007140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 325849, 651698, 1303396, 1629245, 2606792, 3258490, 5213584, 6516980, 10427168, 13033960, 20854336, 26067920, 41708672, 52135840, 104271680, 208543360]

約数ペア:

[(1, 208543360), (2, 104271680), (4, 52135840), (5, 41708672), (8, 26067920), (10, 20854336), (16, 13033960), (20, 10427168), (32, 6516980), (40, 5213584), (64, 3258490), (80, 2606792), (128, 1629245), (160, 1303396), (320, 651698), (640, 325849)]