80319760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:416

約数の個数: 80

約数和(自身を含む): 194987520

約数和(自身を除く): 114667760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 139, 155, 233, 248, 278, 310, 466, 496, 556, 620, 695, 932, 1112, 1165, 1240, 1390, 1864, 2224, 2330, 2480, 2780, 3728, 4309, 4660, 5560, 7223, 8618, 9320, 11120, 14446, 17236, 18640, 21545, 28892, 32387, 34472, 36115, 43090, 57784, 64774, 68944, 72230, 86180, 115568, 129548, 144460, 161935, 172360, 259096, 288920, 323870, 344720, 518192, 577840, 647740, 1003997, 1295480, 2007994, 2590960, 4015988, 5019985, 8031976, 10039970, 16063952, 20079940, 40159880, 80319760]

約数ペア:

[(1, 80319760), (2, 40159880), (4, 20079940), (5, 16063952), (8, 10039970), (10, 8031976), (16, 5019985), (20, 4015988), (31, 2590960), (40, 2007994), (62, 1295480), (80, 1003997), (124, 647740), (139, 577840), (155, 518192), (233, 344720), (248, 323870), (278, 288920), (310, 259096), (466, 172360), (496, 161935), (556, 144460), (620, 129548), (695, 115568), (932, 86180), (1112, 72230), (1165, 68944), (1240, 64774), (1390, 57784), (1864, 43090), (2224, 36115), (2330, 34472), (2480, 32387), (2780, 28892), (3728, 21545), (4309, 18640), (4660, 17236), (5560, 14446), (7223, 11120), (8618, 9320)]