1256437520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1208113}}^1$

素因数の和:1208139

約数の個数: 40

約数和(自身を含む): 3145928856

約数和(自身を除く): 1889491336

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1208113, 2416226, 4832452, 6040565, 9664904, 12081130, 15705469, 19329808, 24162260, 31410938, 48324520, 62821876, 78527345, 96649040, 125643752, 157054690, 251287504, 314109380, 628218760, 1256437520]

約数ペア:

[(1, 1256437520), (2, 628218760), (4, 314109380), (5, 251287504), (8, 157054690), (10, 125643752), (13, 96649040), (16, 78527345), (20, 62821876), (26, 48324520), (40, 31410938), (52, 24162260), (65, 19329808), (80, 15705469), (104, 12081130), (130, 9664904), (208, 6040565), (260, 4832452), (520, 2416226), (1040, 1208113)]