69415640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{247913}}^1$

素因数の和:247931

約数の個数: 32

約数和(自身を含む): 178498080

約数和(自身を除く): 109082440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 247913, 495826, 991652, 1239565, 1735391, 1983304, 2479130, 3470782, 4958260, 6941564, 8676955, 9916520, 13883128, 17353910, 34707820, 69415640]

約数ペア:

[(1, 69415640), (2, 34707820), (4, 17353910), (5, 13883128), (7, 9916520), (8, 8676955), (10, 6941564), (14, 4958260), (20, 3470782), (28, 2479130), (35, 1983304), (40, 1735391), (56, 1239565), (70, 991652), (140, 495826), (280, 247913)]