13164820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:280

約数の個数: 48

約数和(自身を含む): 28643328

約数和(自身を除く): 15478508

約数列:

[1, 2, 4, 5, 10, 20, 71, 73, 127, 142, 146, 254, 284, 292, 355, 365, 508, 635, 710, 730, 1270, 1420, 1460, 2540, 5183, 9017, 9271, 10366, 18034, 18542, 20732, 25915, 36068, 37084, 45085, 46355, 51830, 90170, 92710, 103660, 180340, 185420, 658241, 1316482, 2632964, 3291205, 6582410, 13164820]

約数ペア:

[(1, 13164820), (2, 6582410), (4, 3291205), (5, 2632964), (10, 1316482), (20, 658241), (71, 185420), (73, 180340), (127, 103660), (142, 92710), (146, 90170), (254, 51830), (284, 46355), (292, 45085), (355, 37084), (365, 36068), (508, 25915), (635, 20732), (710, 18542), (730, 18034), (1270, 10366), (1420, 9271), (1460, 9017), (2540, 5183)]