201318380

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{257}}^1\times {\mathrm{739}}^1$

素因数の和:1058

約数の個数: 48

約数和(自身を含む): 433006560

約数和(自身を除く): 231688180

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 257, 265, 514, 530, 739, 1028, 1060, 1285, 1478, 2570, 2956, 3695, 5140, 7390, 13621, 14780, 27242, 39167, 54484, 68105, 78334, 136210, 156668, 189923, 195835, 272420, 379846, 391670, 759692, 783340, 949615, 1899230, 3798460, 10065919, 20131838, 40263676, 50329595, 100659190, 201318380]

約数ペア:

[(1, 201318380), (2, 100659190), (4, 50329595), (5, 40263676), (10, 20131838), (20, 10065919), (53, 3798460), (106, 1899230), (212, 949615), (257, 783340), (265, 759692), (514, 391670), (530, 379846), (739, 272420), (1028, 195835), (1060, 189923), (1285, 156668), (1478, 136210), (2570, 78334), (2956, 68105), (3695, 54484), (5140, 39167), (7390, 27242), (13621, 14780)]