400835440

素因数分解:

$2^4\times 5^1\times {\mathrm{467}}^1\times {\mathrm{10729}}^1$

素因数の和:11209

約数の個数: 40

約数和(自身を含む): 934025040

約数和(自身を除く): 533189600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 467, 934, 1868, 2335, 3736, 4670, 7472, 9340, 10729, 18680, 21458, 37360, 42916, 53645, 85832, 107290, 171664, 214580, 429160, 858320, 5010443, 10020886, 20041772, 25052215, 40083544, 50104430, 80167088, 100208860, 200417720, 400835440]

約数ペア:

[(1, 400835440), (2, 200417720), (4, 100208860), (5, 80167088), (8, 50104430), (10, 40083544), (16, 25052215), (20, 20041772), (40, 10020886), (80, 5010443), (467, 858320), (934, 429160), (1868, 214580), (2335, 171664), (3736, 107290), (4670, 85832), (7472, 53645), (9340, 42916), (10729, 37360), (18680, 21458)]