31995440

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:258

約数の個数: 80

約数和(自身を含む): 77780736

約数和(自身を除く): 45785296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 71, 80, 86, 131, 142, 172, 215, 262, 284, 344, 355, 430, 524, 568, 655, 688, 710, 860, 1048, 1136, 1310, 1420, 1720, 2096, 2620, 2840, 3053, 3440, 5240, 5633, 5680, 6106, 9301, 10480, 11266, 12212, 15265, 18602, 22532, 24424, 28165, 30530, 37204, 45064, 46505, 48848, 56330, 61060, 74408, 90128, 93010, 112660, 122120, 148816, 186020, 225320, 244240, 372040, 399943, 450640, 744080, 799886, 1599772, 1999715, 3199544, 3999430, 6399088, 7998860, 15997720, 31995440]

約数ペア:

[(1, 31995440), (2, 15997720), (4, 7998860), (5, 6399088), (8, 3999430), (10, 3199544), (16, 1999715), (20, 1599772), (40, 799886), (43, 744080), (71, 450640), (80, 399943), (86, 372040), (131, 244240), (142, 225320), (172, 186020), (215, 148816), (262, 122120), (284, 112660), (344, 93010), (355, 90128), (430, 74408), (524, 61060), (568, 56330), (655, 48848), (688, 46505), (710, 45064), (860, 37204), (1048, 30530), (1136, 28165), (1310, 24424), (1420, 22532), (1720, 18602), (2096, 15265), (2620, 12212), (2840, 11266), (3053, 10480), (3440, 9301), (5240, 6106), (5633, 5680)]