87130420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{335117}}^1$

素因数の和:335139

約数の個数: 24

約数和(自身を含む): 197049384

約数和(自身を除く): 109918964

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 335117, 670234, 1340468, 1675585, 3351170, 4356521, 6702340, 8713042, 17426084, 21782605, 43565210, 87130420]

約数ペア:

[(1, 87130420), (2, 43565210), (4, 21782605), (5, 17426084), (10, 8713042), (13, 6702340), (20, 4356521), (26, 3351170), (52, 1675585), (65, 1340468), (130, 670234), (260, 335117)]