344240

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1$

素因数の和:357

約数の個数: 40

約数和(自身を含む): 864528

約数和(自身を除く): 520288

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 331, 520, 662, 1040, 1324, 1655, 2648, 3310, 4303, 5296, 6620, 8606, 13240, 17212, 21515, 26480, 34424, 43030, 68848, 86060, 172120, 344240]

約数ペア:

[(1, 344240), (2, 172120), (4, 86060), (5, 68848), (8, 43030), (10, 34424), (13, 26480), (16, 21515), (20, 17212), (26, 13240), (40, 8606), (52, 6620), (65, 5296), (80, 4303), (104, 3310), (130, 2648), (208, 1655), (260, 1324), (331, 1040), (520, 662)]