247910680

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1\times {\mathrm{347}}^1$

素因数の和:748

約数の個数: 64

約数和(自身を含む): 571652640

約数和(自身を除く): 323741960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 337, 347, 424, 530, 674, 694, 1060, 1348, 1388, 1685, 1735, 2120, 2696, 2776, 3370, 3470, 6740, 6940, 13480, 13880, 17861, 18391, 35722, 36782, 71444, 73564, 89305, 91955, 116939, 142888, 147128, 178610, 183910, 233878, 357220, 367820, 467756, 584695, 714440, 735640, 935512, 1169390, 2338780, 4677560, 6197767, 12395534, 24791068, 30988835, 49582136, 61977670, 123955340, 247910680]

約数ペア:

[(1, 247910680), (2, 123955340), (4, 61977670), (5, 49582136), (8, 30988835), (10, 24791068), (20, 12395534), (40, 6197767), (53, 4677560), (106, 2338780), (212, 1169390), (265, 935512), (337, 735640), (347, 714440), (424, 584695), (530, 467756), (674, 367820), (694, 357220), (1060, 233878), (1348, 183910), (1388, 178610), (1685, 147128), (1735, 142888), (2120, 116939), (2696, 91955), (2776, 89305), (3370, 73564), (3470, 71444), (6740, 36782), (6940, 35722), (13480, 18391), (13880, 17861)]