115454980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1\times {\mathrm{251}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 246818880

約数和(自身を除く): 131363900

約数列:

[1, 2, 4, 5, 10, 20, 109, 211, 218, 251, 422, 436, 502, 545, 844, 1004, 1055, 1090, 1255, 2110, 2180, 2510, 4220, 5020, 22999, 27359, 45998, 52961, 54718, 91996, 105922, 109436, 114995, 136795, 211844, 229990, 264805, 273590, 459980, 529610, 547180, 1059220, 5772749, 11545498, 23090996, 28863745, 57727490, 115454980]

約数ペア:

[(1, 115454980), (2, 57727490), (4, 28863745), (5, 23090996), (10, 11545498), (20, 5772749), (109, 1059220), (211, 547180), (218, 529610), (251, 459980), (422, 273590), (436, 264805), (502, 229990), (545, 211844), (844, 136795), (1004, 114995), (1055, 109436), (1090, 105922), (1255, 91996), (2110, 54718), (2180, 52961), (2510, 45998), (4220, 27359), (5020, 22999)]