15678340420

素因数分解:

$2^2\times 5^1\times {\mathrm{12113}}^1\times {\mathrm{64717}}^1$

素因数の和:76839

約数の個数: 24

約数和(自身を含む): 32927741784

約数和(自身を除く): 17249401364

約数列:

[1, 2, 4, 5, 10, 20, 12113, 24226, 48452, 60565, 64717, 121130, 129434, 242260, 258868, 323585, 647170, 1294340, 783917021, 1567834042, 3135668084, 3919585105, 7839170210, 15678340420]

約数ペア:

[(1, 15678340420), (2, 7839170210), (4, 3919585105), (5, 3135668084), (10, 1567834042), (20, 783917021), (12113, 1294340), (24226, 647170), (48452, 323585), (60565, 258868), (64717, 242260), (121130, 129434)]