64911040

素因数分解:

$2^6\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2857}}^1$

素因数の和:2945

約数の個数: 56

約数和(自身を含む): 156801312

約数和(自身を除く): 91890272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 142, 160, 284, 320, 355, 568, 710, 1136, 1420, 2272, 2840, 2857, 4544, 5680, 5714, 11360, 11428, 14285, 22720, 22856, 28570, 45712, 57140, 91424, 114280, 182848, 202847, 228560, 405694, 457120, 811388, 914240, 1014235, 1622776, 2028470, 3245552, 4056940, 6491104, 8113880, 12982208, 16227760, 32455520, 64911040]

約数ペア:

[(1, 64911040), (2, 32455520), (4, 16227760), (5, 12982208), (8, 8113880), (10, 6491104), (16, 4056940), (20, 3245552), (32, 2028470), (40, 1622776), (64, 1014235), (71, 914240), (80, 811388), (142, 457120), (160, 405694), (284, 228560), (320, 202847), (355, 182848), (568, 114280), (710, 91424), (1136, 57140), (1420, 45712), (2272, 28570), (2840, 22856), (2857, 22720), (4544, 14285), (5680, 11428), (5714, 11360)]