397227520

素因数分解:

$2^9\times 5^1\times {\mathrm{155167}}^1$

素因数の和:155190

約数の個数: 40

約数和(自身を含む): 952421184

約数和(自身を除く): 555193664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 155167, 310334, 620668, 775835, 1241336, 1551670, 2482672, 3103340, 4965344, 6206680, 9930688, 12413360, 19861376, 24826720, 39722752, 49653440, 79445504, 99306880, 198613760, 397227520]

約数ペア:

[(1, 397227520), (2, 198613760), (4, 99306880), (5, 79445504), (8, 49653440), (10, 39722752), (16, 24826720), (20, 19861376), (32, 12413360), (40, 9930688), (64, 6206680), (80, 4965344), (128, 3103340), (160, 2482672), (256, 1551670), (320, 1241336), (512, 775835), (640, 620668), (1280, 310334), (2560, 155167)]