8778980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{859}}^1$

素因数の和:948

約数の個数: 48

約数和(自身を含む): 21383040

約数和(自身を除く): 12604060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 73, 140, 146, 292, 365, 511, 730, 859, 1022, 1460, 1718, 2044, 2555, 3436, 4295, 5110, 6013, 8590, 10220, 12026, 17180, 24052, 30065, 60130, 62707, 120260, 125414, 250828, 313535, 438949, 627070, 877898, 1254140, 1755796, 2194745, 4389490, 8778980]

約数ペア:

[(1, 8778980), (2, 4389490), (4, 2194745), (5, 1755796), (7, 1254140), (10, 877898), (14, 627070), (20, 438949), (28, 313535), (35, 250828), (70, 125414), (73, 120260), (140, 62707), (146, 60130), (292, 30065), (365, 24052), (511, 17180), (730, 12026), (859, 10220), (1022, 8590), (1460, 6013), (1718, 5110), (2044, 4295), (2555, 3436)]