387680254

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{18803}}^1$

素因数の和:18892

約数の個数: 24

約数和(自身を含む): 640050552

約数和(自身を除く): 252370298

約数列:

[1, 2, 13, 26, 61, 122, 169, 338, 793, 1586, 10309, 18803, 20618, 37606, 244439, 488878, 1146983, 2293966, 3177707, 6355414, 14910779, 29821558, 193840127, 387680254]

約数ペア:

[(1, 387680254), (2, 193840127), (13, 29821558), (26, 14910779), (61, 6355414), (122, 3177707), (169, 2293966), (338, 1146983), (793, 488878), (1586, 244439), (10309, 37606), (18803, 20618)]