26811820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:383

約数の個数: 72

約数和(自身を含む): 66361680

約数和(自身を除く): 39549860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 109, 140, 196, 218, 245, 251, 436, 490, 502, 545, 763, 980, 1004, 1090, 1255, 1526, 1757, 2180, 2510, 3052, 3514, 3815, 5020, 5341, 7028, 7630, 8785, 10682, 12299, 15260, 17570, 21364, 24598, 26705, 27359, 35140, 49196, 53410, 54718, 61495, 106820, 109436, 122990, 136795, 191513, 245980, 273590, 383026, 547180, 766052, 957565, 1340591, 1915130, 2681182, 3830260, 5362364, 6702955, 13405910, 26811820]

約数ペア:

[(1, 26811820), (2, 13405910), (4, 6702955), (5, 5362364), (7, 3830260), (10, 2681182), (14, 1915130), (20, 1340591), (28, 957565), (35, 766052), (49, 547180), (70, 383026), (98, 273590), (109, 245980), (140, 191513), (196, 136795), (218, 122990), (245, 109436), (251, 106820), (436, 61495), (490, 54718), (502, 53410), (545, 49196), (763, 35140), (980, 27359), (1004, 26705), (1090, 24598), (1255, 21364), (1526, 17570), (1757, 15260), (2180, 12299), (2510, 10682), (3052, 8785), (3514, 7630), (3815, 7028), (5020, 5341)]