20149090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:187

約数の個数: 64

約数和(自身を含む): 41368320

約数和(自身を除く): 21219230

約数列:

[1, 2, 5, 10, 13, 26, 37, 59, 65, 71, 74, 118, 130, 142, 185, 295, 355, 370, 481, 590, 710, 767, 923, 962, 1534, 1846, 2183, 2405, 2627, 3835, 4189, 4366, 4615, 4810, 5254, 7670, 8378, 9230, 10915, 13135, 20945, 21830, 26270, 28379, 34151, 41890, 54457, 56758, 68302, 108914, 141895, 154993, 170755, 272285, 283790, 309986, 341510, 544570, 774965, 1549930, 2014909, 4029818, 10074545, 20149090]

約数ペア:

[(1, 20149090), (2, 10074545), (5, 4029818), (10, 2014909), (13, 1549930), (26, 774965), (37, 544570), (59, 341510), (65, 309986), (71, 283790), (74, 272285), (118, 170755), (130, 154993), (142, 141895), (185, 108914), (295, 68302), (355, 56758), (370, 54457), (481, 41890), (590, 34151), (710, 28379), (767, 26270), (923, 21830), (962, 20945), (1534, 13135), (1846, 10915), (2183, 9230), (2405, 8378), (2627, 7670), (3835, 5254), (4189, 4810), (4366, 4615)]