20798924240

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{33413}}^1$

素因数の和:33708

約数の個数: 80

約数和(自身を含む): 50117792256

約数和(自身を除く): 29318868016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 251, 310, 496, 502, 620, 1004, 1240, 1255, 2008, 2480, 2510, 4016, 5020, 7781, 10040, 15562, 20080, 31124, 33413, 38905, 62248, 66826, 77810, 124496, 133652, 155620, 167065, 267304, 311240, 334130, 534608, 622480, 668260, 1035803, 1336520, 2071606, 2673040, 4143212, 5179015, 8286424, 8386663, 10358030, 16572848, 16773326, 20716060, 33546652, 41432120, 41933315, 67093304, 82864240, 83866630, 134186608, 167733260, 259986553, 335466520, 519973106, 670933040, 1039946212, 1299932765, 2079892424, 2599865530, 4159784848, 5199731060, 10399462120, 20798924240]

約数ペア:

[(1, 20798924240), (2, 10399462120), (4, 5199731060), (5, 4159784848), (8, 2599865530), (10, 2079892424), (16, 1299932765), (20, 1039946212), (31, 670933040), (40, 519973106), (62, 335466520), (80, 259986553), (124, 167733260), (155, 134186608), (248, 83866630), (251, 82864240), (310, 67093304), (496, 41933315), (502, 41432120), (620, 33546652), (1004, 20716060), (1240, 16773326), (1255, 16572848), (2008, 10358030), (2480, 8386663), (2510, 8286424), (4016, 5179015), (5020, 4143212), (7781, 2673040), (10040, 2071606), (15562, 1336520), (20080, 1035803), (31124, 668260), (33413, 622480), (38905, 534608), (62248, 334130), (66826, 311240), (77810, 267304), (124496, 167065), (133652, 155620)]