3947788

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1$

素因数の和:158

約数の個数: 36

約数和(自身を含む): 7785120

約数和(自身を除く): 3837332

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 79, 124, 158, 316, 403, 806, 961, 1027, 1612, 1922, 2054, 2449, 3844, 4108, 4898, 9796, 12493, 24986, 31837, 49972, 63674, 75919, 127348, 151838, 303676, 986947, 1973894, 3947788]

約数ペア:

[(1, 3947788), (2, 1973894), (4, 986947), (13, 303676), (26, 151838), (31, 127348), (52, 75919), (62, 63674), (79, 49972), (124, 31837), (158, 24986), (316, 12493), (403, 9796), (806, 4898), (961, 4108), (1027, 3844), (1612, 2449), (1922, 2054)]