20467460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78721}}^1$

素因数の和:78743

約数の個数: 24

約数和(自身を含む): 46288536

約数和(自身を除く): 25821076

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 78721, 157442, 314884, 393605, 787210, 1023373, 1574420, 2046746, 4093492, 5116865, 10233730, 20467460]

約数ペア:

[(1, 20467460), (2, 10233730), (4, 5116865), (5, 4093492), (10, 2046746), (13, 1574420), (20, 1023373), (26, 787210), (52, 393605), (65, 314884), (130, 157442), (260, 78721)]