319626880

素因数分解:

$2^7\times 5^1\times {\mathrm{157}}^1\times {\mathrm{3181}}^1$

素因数の和:3357

約数の個数: 64

約数和(自身を含む): 769216680

約数和(自身を除く): 449589800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 314, 320, 628, 640, 785, 1256, 1570, 2512, 3140, 3181, 5024, 6280, 6362, 10048, 12560, 12724, 15905, 20096, 25120, 25448, 31810, 50240, 50896, 63620, 100480, 101792, 127240, 203584, 254480, 407168, 499417, 508960, 998834, 1017920, 1997668, 2035840, 2497085, 3995336, 4994170, 7990672, 9988340, 15981344, 19976680, 31962688, 39953360, 63925376, 79906720, 159813440, 319626880]

約数ペア:

[(1, 319626880), (2, 159813440), (4, 79906720), (5, 63925376), (8, 39953360), (10, 31962688), (16, 19976680), (20, 15981344), (32, 9988340), (40, 7990672), (64, 4994170), (80, 3995336), (128, 2497085), (157, 2035840), (160, 1997668), (314, 1017920), (320, 998834), (628, 508960), (640, 499417), (785, 407168), (1256, 254480), (1570, 203584), (2512, 127240), (3140, 101792), (3181, 100480), (5024, 63620), (6280, 50896), (6362, 50240), (10048, 31810), (12560, 25448), (12724, 25120), (15905, 20096)]