20080200080

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{577}}^1\times {\mathrm{25589}}^1$

素因数の和:26196

約数の個数: 80

約数和(自身を含む): 49520334960

約数和(自身を除く): 29440134880

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 577, 680, 1154, 1360, 2308, 2885, 4616, 5770, 9232, 9809, 11540, 19618, 23080, 25589, 39236, 46160, 49045, 51178, 78472, 98090, 102356, 127945, 156944, 196180, 204712, 255890, 392360, 409424, 435013, 511780, 784720, 870026, 1023560, 1740052, 2047120, 2175065, 3480104, 4350130, 6960208, 8700260, 14764853, 17400520, 29529706, 34801040, 59059412, 73824265, 118118824, 147648530, 236237648, 251002501, 295297060, 502005002, 590594120, 1004010004, 1181188240, 1255012505, 2008020008, 2510025010, 4016040016, 5020050020, 10040100040, 20080200080]

約数ペア:

[(1, 20080200080), (2, 10040100040), (4, 5020050020), (5, 4016040016), (8, 2510025010), (10, 2008020008), (16, 1255012505), (17, 1181188240), (20, 1004010004), (34, 590594120), (40, 502005002), (68, 295297060), (80, 251002501), (85, 236237648), (136, 147648530), (170, 118118824), (272, 73824265), (340, 59059412), (577, 34801040), (680, 29529706), (1154, 17400520), (1360, 14764853), (2308, 8700260), (2885, 6960208), (4616, 4350130), (5770, 3480104), (9232, 2175065), (9809, 2047120), (11540, 1740052), (19618, 1023560), (23080, 870026), (25589, 784720), (39236, 511780), (46160, 435013), (49045, 409424), (51178, 392360), (78472, 255890), (98090, 204712), (102356, 196180), (127945, 156944)]