68304340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{262709}}^1$

素因数の和:262731

約数の個数: 24

約数和(自身を含む): 154473480

約数和(自身を除く): 86169140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 262709, 525418, 1050836, 1313545, 2627090, 3415217, 5254180, 6830434, 13660868, 17076085, 34152170, 68304340]

約数ペア:

[(1, 68304340), (2, 34152170), (4, 17076085), (5, 13660868), (10, 6830434), (13, 5254180), (20, 3415217), (26, 2627090), (52, 1313545), (65, 1050836), (130, 525418), (260, 262709)]