81872240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{33013}}^1$

素因数の和:33057

約数の個数: 40

約数和(自身を含む): 196499328

約数和(自身を除く): 114627088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 33013, 66026, 132052, 165065, 264104, 330130, 528208, 660260, 1023403, 1320520, 2046806, 2641040, 4093612, 5117015, 8187224, 10234030, 16374448, 20468060, 40936120, 81872240]

約数ペア:

[(1, 81872240), (2, 40936120), (4, 20468060), (5, 16374448), (8, 10234030), (10, 8187224), (16, 5117015), (20, 4093612), (31, 2641040), (40, 2046806), (62, 1320520), (80, 1023403), (124, 660260), (155, 528208), (248, 330130), (310, 264104), (496, 165065), (620, 132052), (1240, 66026), (2480, 33013)]