531396940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1398413}}^1$

素因数の和:1398441

約数の個数: 24

約数和(自身を含む): 1174667760

約数和(自身を除く): 643270820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1398413, 2796826, 5593652, 6992065, 13984130, 26569847, 27968260, 53139694, 106279388, 132849235, 265698470, 531396940]

約数ペア:

[(1, 531396940), (2, 265698470), (4, 132849235), (5, 106279388), (10, 53139694), (19, 27968260), (20, 26569847), (38, 13984130), (76, 6992065), (95, 5593652), (190, 2796826), (380, 1398413)]