68135720

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{13003}}^1$

素因数の和:13145

約数の個数: 32

約数和(自身を含む): 154487520

約数和(自身を除く): 86351800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 13003, 26006, 52012, 65015, 104024, 130030, 260060, 520120, 1703393, 3406786, 6813572, 8516965, 13627144, 17033930, 34067860, 68135720]

約数ペア:

[(1, 68135720), (2, 34067860), (4, 17033930), (5, 13627144), (8, 8516965), (10, 6813572), (20, 3406786), (40, 1703393), (131, 520120), (262, 260060), (524, 130030), (655, 104024), (1048, 65015), (1310, 52012), (2620, 26006), (5240, 13003)]