78182780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{23131}}^1$

素因数の和:23166

約数の個数: 36

約数和(自身を含む): 177792552

約数和(自身を除く): 99609772

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 23131, 46262, 92524, 115655, 231310, 300703, 462620, 601406, 1202812, 1503515, 3007030, 3909139, 6014060, 7818278, 15636556, 19545695, 39091390, 78182780]

約数ペア:

[(1, 78182780), (2, 39091390), (4, 19545695), (5, 15636556), (10, 7818278), (13, 6014060), (20, 3909139), (26, 3007030), (52, 1503515), (65, 1202812), (130, 601406), (169, 462620), (260, 300703), (338, 231310), (676, 115655), (845, 92524), (1690, 46262), (3380, 23131)]