31936640

素因数分解:

$2^7\times 5^1\times {\mathrm{139}}^1\times {\mathrm{359}}^1$

素因数の和:517

約数の個数: 64

約数和(自身を含む): 77112000

約数和(自身を除く): 45175360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 278, 320, 359, 556, 640, 695, 718, 1112, 1390, 1436, 1795, 2224, 2780, 2872, 3590, 4448, 5560, 5744, 7180, 8896, 11120, 11488, 14360, 17792, 22240, 22976, 28720, 44480, 45952, 49901, 57440, 88960, 99802, 114880, 199604, 229760, 249505, 399208, 499010, 798416, 998020, 1596832, 1996040, 3193664, 3992080, 6387328, 7984160, 15968320, 31936640]

約数ペア:

[(1, 31936640), (2, 15968320), (4, 7984160), (5, 6387328), (8, 3992080), (10, 3193664), (16, 1996040), (20, 1596832), (32, 998020), (40, 798416), (64, 499010), (80, 399208), (128, 249505), (139, 229760), (160, 199604), (278, 114880), (320, 99802), (359, 88960), (556, 57440), (640, 49901), (695, 45952), (718, 44480), (1112, 28720), (1390, 22976), (1436, 22240), (1795, 17792), (2224, 14360), (2780, 11488), (2872, 11120), (3590, 8896), (4448, 7180), (5560, 5744)]