261894838

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{421}}^1\times {\mathrm{5099}}^1$

素因数の和:5583

約数の個数: 16

約数和(自身を含む): 400309200

約数和(自身を除く): 138414362

約数列:

[1, 2, 61, 122, 421, 842, 5099, 10198, 25681, 51362, 311039, 622078, 2146679, 4293358, 130947419, 261894838]

約数ペア:

[(1, 261894838), (2, 130947419), (61, 4293358), (122, 2146679), (421, 622078), (842, 311039), (5099, 51362), (10198, 25681)]