251485995

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{691}}^1\times {\mathrm{1277}}^1$

素因数の和:1995

約数の個数: 32

約数和(自身を含む): 424500480

約数和(自身を除く): 173014485

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 691, 1277, 2073, 3455, 3831, 6385, 10365, 13129, 19155, 24263, 39387, 65645, 72789, 121315, 196935, 363945, 882407, 2647221, 4412035, 13236105, 16765733, 50297199, 83828665, 251485995]

約数ペア:

[(1, 251485995), (3, 83828665), (5, 50297199), (15, 16765733), (19, 13236105), (57, 4412035), (95, 2647221), (285, 882407), (691, 363945), (1277, 196935), (2073, 121315), (3455, 72789), (3831, 65645), (6385, 39387), (10365, 24263), (13129, 19155)]