18829460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{72421}}^1$

素因数の和:72443

約数の個数: 24

約数和(自身を含む): 42584136

約数和(自身を除く): 23754676

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 72421, 144842, 289684, 362105, 724210, 941473, 1448420, 1882946, 3765892, 4707365, 9414730, 18829460]

約数ペア:

[(1, 18829460), (2, 9414730), (4, 4707365), (5, 3765892), (10, 1882946), (13, 1448420), (20, 941473), (26, 724210), (52, 362105), (65, 289684), (130, 144842), (260, 72421)]