20184520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{9521}}^1$

素因数の和:9585

約数の個数: 32

約数和(自身を含む): 46276920

約数和(自身を除く): 26092400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 9521, 19042, 38084, 47605, 76168, 95210, 190420, 380840, 504613, 1009226, 2018452, 2523065, 4036904, 5046130, 10092260, 20184520]

約数ペア:

[(1, 20184520), (2, 10092260), (4, 5046130), (5, 4036904), (8, 2523065), (10, 2018452), (20, 1009226), (40, 504613), (53, 380840), (106, 190420), (212, 95210), (265, 76168), (424, 47605), (530, 38084), (1060, 19042), (2120, 9521)]