655000240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{264113}}^1$

素因数の和:264157

約数の個数: 40

約数和(自身を含む): 1572006528

約数和(自身を除く): 917006288

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 264113, 528226, 1056452, 1320565, 2112904, 2641130, 4225808, 5282260, 8187503, 10564520, 16375006, 21129040, 32750012, 40937515, 65500024, 81875030, 131000048, 163750060, 327500120, 655000240]

約数ペア:

[(1, 655000240), (2, 327500120), (4, 163750060), (5, 131000048), (8, 81875030), (10, 65500024), (16, 40937515), (20, 32750012), (31, 21129040), (40, 16375006), (62, 10564520), (80, 8187503), (124, 5282260), (155, 4225808), (248, 2641130), (310, 2112904), (496, 1320565), (620, 1056452), (1240, 528226), (2480, 264113)]