208287760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83987}}^1$

素因数の和:84031

約数の個数: 40

約数和(自身を含む): 499896576

約数和(自身を除く): 291608816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 83987, 167974, 335948, 419935, 671896, 839870, 1343792, 1679740, 2603597, 3359480, 5207194, 6718960, 10414388, 13017985, 20828776, 26035970, 41657552, 52071940, 104143880, 208287760]

約数ペア:

[(1, 208287760), (2, 104143880), (4, 52071940), (5, 41657552), (8, 26035970), (10, 20828776), (16, 13017985), (20, 10414388), (31, 6718960), (40, 5207194), (62, 3359480), (80, 2603597), (124, 1679740), (155, 1343792), (248, 839870), (310, 671896), (496, 419935), (620, 335948), (1240, 167974), (2480, 83987)]