64407040

素因数分解:

$2^9\times 5^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:343

約数の個数: 80

約数和(自身を含む): 156396240

約数和(自身を除く): 91989200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 181, 256, 278, 320, 362, 512, 556, 640, 695, 724, 905, 1112, 1280, 1390, 1448, 1810, 2224, 2560, 2780, 2896, 3620, 4448, 5560, 5792, 7240, 8896, 11120, 11584, 14480, 17792, 22240, 23168, 25159, 28960, 35584, 44480, 46336, 50318, 57920, 71168, 88960, 92672, 100636, 115840, 125795, 177920, 201272, 231680, 251590, 355840, 402544, 463360, 503180, 805088, 1006360, 1610176, 2012720, 3220352, 4025440, 6440704, 8050880, 12881408, 16101760, 32203520, 64407040]

約数ペア:

[(1, 64407040), (2, 32203520), (4, 16101760), (5, 12881408), (8, 8050880), (10, 6440704), (16, 4025440), (20, 3220352), (32, 2012720), (40, 1610176), (64, 1006360), (80, 805088), (128, 503180), (139, 463360), (160, 402544), (181, 355840), (256, 251590), (278, 231680), (320, 201272), (362, 177920), (512, 125795), (556, 115840), (640, 100636), (695, 92672), (724, 88960), (905, 71168), (1112, 57920), (1280, 50318), (1390, 46336), (1448, 44480), (1810, 35584), (2224, 28960), (2560, 25159), (2780, 23168), (2896, 22240), (3620, 17792), (4448, 14480), (5560, 11584), (5792, 11120), (7240, 8896)]