19970210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6679}}^1$

素因数の和:6722

約数の個数: 32

約数和(自身を含む): 40400640

約数和(自身を除く): 20430430

約数列:

[1, 2, 5, 10, 13, 23, 26, 46, 65, 115, 130, 230, 299, 598, 1495, 2990, 6679, 13358, 33395, 66790, 86827, 153617, 173654, 307234, 434135, 768085, 868270, 1536170, 1997021, 3994042, 9985105, 19970210]

約数ペア:

[(1, 19970210), (2, 9985105), (5, 3994042), (10, 1997021), (13, 1536170), (23, 868270), (26, 768085), (46, 434135), (65, 307234), (115, 173654), (130, 153617), (230, 86827), (299, 66790), (598, 33395), (1495, 13358), (2990, 6679)]