397348720

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{171271}}^1$

素因数の和:171313

約数の個数: 40

約数和(自身を含む): 955697760

約数和(自身を除く): 558349040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 171271, 342542, 685084, 856355, 1370168, 1712710, 2740336, 3425420, 4966859, 6850840, 9933718, 13701680, 19867436, 24834295, 39734872, 49668590, 79469744, 99337180, 198674360, 397348720]

約数ペア:

[(1, 397348720), (2, 198674360), (4, 99337180), (5, 79469744), (8, 49668590), (10, 39734872), (16, 24834295), (20, 19867436), (29, 13701680), (40, 9933718), (58, 6850840), (80, 4966859), (116, 3425420), (145, 2740336), (232, 1712710), (290, 1370168), (464, 856355), (580, 685084), (1160, 342542), (2320, 171271)]