287485780

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{367}}^1\times {\mathrm{739}}^1$

素因数の和:1168

約数の個数: 48

約数和(自身を含む): 617621760

約数和(自身を除く): 330135980

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 367, 530, 734, 739, 1060, 1468, 1478, 1835, 2956, 3670, 3695, 7340, 7390, 14780, 19451, 38902, 39167, 77804, 78334, 97255, 156668, 194510, 195835, 271213, 389020, 391670, 542426, 783340, 1084852, 1356065, 2712130, 5424260, 14374289, 28748578, 57497156, 71871445, 143742890, 287485780]

約数ペア:

[(1, 287485780), (2, 143742890), (4, 71871445), (5, 57497156), (10, 28748578), (20, 14374289), (53, 5424260), (106, 2712130), (212, 1356065), (265, 1084852), (367, 783340), (530, 542426), (734, 391670), (739, 389020), (1060, 271213), (1468, 195835), (1478, 194510), (1835, 156668), (2956, 97255), (3670, 78334), (3695, 77804), (7340, 39167), (7390, 38902), (14780, 19451)]