203288080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{81971}}^1$

素因数の和:82015

約数の個数: 40

約数和(自身を含む): 487897344

約数和(自身を除く): 284609264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 81971, 163942, 327884, 409855, 655768, 819710, 1311536, 1639420, 2541101, 3278840, 5082202, 6557680, 10164404, 12705505, 20328808, 25411010, 40657616, 50822020, 101644040, 203288080]

約数ペア:

[(1, 203288080), (2, 101644040), (4, 50822020), (5, 40657616), (8, 25411010), (10, 20328808), (16, 12705505), (20, 10164404), (31, 6557680), (40, 5082202), (62, 3278840), (80, 2541101), (124, 1639420), (155, 1311536), (248, 819710), (310, 655768), (496, 409855), (620, 327884), (1240, 163942), (2480, 81971)]