54921680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{449}}^1$

素因数の和:612

約数の個数: 80

約数和(自身を含む): 140616000

約数和(自身を除く): 85694320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 139, 176, 220, 278, 440, 449, 556, 695, 880, 898, 1112, 1390, 1529, 1796, 2224, 2245, 2780, 3058, 3592, 4490, 4939, 5560, 6116, 7184, 7645, 8980, 9878, 11120, 12232, 15290, 17960, 19756, 24464, 24695, 30580, 35920, 39512, 49390, 61160, 62411, 79024, 98780, 122320, 124822, 197560, 249644, 312055, 395120, 499288, 624110, 686521, 998576, 1248220, 1373042, 2496440, 2746084, 3432605, 4992880, 5492168, 6865210, 10984336, 13730420, 27460840, 54921680]

約数ペア:

[(1, 54921680), (2, 27460840), (4, 13730420), (5, 10984336), (8, 6865210), (10, 5492168), (11, 4992880), (16, 3432605), (20, 2746084), (22, 2496440), (40, 1373042), (44, 1248220), (55, 998576), (80, 686521), (88, 624110), (110, 499288), (139, 395120), (176, 312055), (220, 249644), (278, 197560), (440, 124822), (449, 122320), (556, 98780), (695, 79024), (880, 62411), (898, 61160), (1112, 49390), (1390, 39512), (1529, 35920), (1796, 30580), (2224, 24695), (2245, 24464), (2780, 19756), (3058, 17960), (3592, 15290), (4490, 12232), (4939, 11120), (5560, 9878), (6116, 8980), (7184, 7645)]