21807926440

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{569}}^1\times {\mathrm{22283}}^1$

素因数の和:22906

約数の個数: 64

約数和(自身を含む): 50299444800

約数和(自身を除く): 28491518360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 569, 860, 1138, 1720, 2276, 2845, 4552, 5690, 11380, 22283, 22760, 24467, 44566, 48934, 89132, 97868, 111415, 122335, 178264, 195736, 222830, 244670, 445660, 489340, 891320, 958169, 978680, 1916338, 3832676, 4790845, 7665352, 9581690, 12679027, 19163380, 25358054, 38326760, 50716108, 63395135, 101432216, 126790270, 253580540, 507161080, 545198161, 1090396322, 2180792644, 2725990805, 4361585288, 5451981610, 10903963220, 21807926440]

約数ペア:

[(1, 21807926440), (2, 10903963220), (4, 5451981610), (5, 4361585288), (8, 2725990805), (10, 2180792644), (20, 1090396322), (40, 545198161), (43, 507161080), (86, 253580540), (172, 126790270), (215, 101432216), (344, 63395135), (430, 50716108), (569, 38326760), (860, 25358054), (1138, 19163380), (1720, 12679027), (2276, 9581690), (2845, 7665352), (4552, 4790845), (5690, 3832676), (11380, 1916338), (22283, 978680), (22760, 958169), (24467, 891320), (44566, 489340), (48934, 445660), (89132, 244670), (97868, 222830), (111415, 195736), (122335, 178264)]