80511760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1319}}^1$

素因数の和:1448

約数の個数: 80

約数和(自身を含む): 216057600

約数和(自身を除く): 135545840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 109, 112, 140, 218, 280, 436, 545, 560, 763, 872, 1090, 1319, 1526, 1744, 2180, 2638, 3052, 3815, 4360, 5276, 6104, 6595, 7630, 8720, 9233, 10552, 12208, 13190, 15260, 18466, 21104, 26380, 30520, 36932, 46165, 52760, 61040, 73864, 92330, 105520, 143771, 147728, 184660, 287542, 369320, 575084, 718855, 738640, 1006397, 1150168, 1437710, 2012794, 2300336, 2875420, 4025588, 5031985, 5750840, 8051176, 10063970, 11501680, 16102352, 20127940, 40255880, 80511760]

約数ペア:

[(1, 80511760), (2, 40255880), (4, 20127940), (5, 16102352), (7, 11501680), (8, 10063970), (10, 8051176), (14, 5750840), (16, 5031985), (20, 4025588), (28, 2875420), (35, 2300336), (40, 2012794), (56, 1437710), (70, 1150168), (80, 1006397), (109, 738640), (112, 718855), (140, 575084), (218, 369320), (280, 287542), (436, 184660), (545, 147728), (560, 143771), (763, 105520), (872, 92330), (1090, 73864), (1319, 61040), (1526, 52760), (1744, 46165), (2180, 36932), (2638, 30520), (3052, 26380), (3815, 21104), (4360, 18466), (5276, 15260), (6104, 13190), (6595, 12208), (7630, 10552), (8720, 9233)]