220746440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149153}}^1$

素因数の和:149201

約数の個数: 32

約数和(自身を含む): 510106680

約数和(自身を除く): 289360240

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 149153, 298306, 596612, 745765, 1193224, 1491530, 2983060, 5518661, 5966120, 11037322, 22074644, 27593305, 44149288, 55186610, 110373220, 220746440]

約数ペア:

[(1, 220746440), (2, 110373220), (4, 55186610), (5, 44149288), (8, 27593305), (10, 22074644), (20, 11037322), (37, 5966120), (40, 5518661), (74, 2983060), (148, 1491530), (185, 1193224), (296, 745765), (370, 596612), (740, 298306), (1480, 149153)]