81011680

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16333}}^1$

素因数の和:16379

約数の個数: 48

約数和(自身を含む): 197576064

約数和(自身を除く): 116564384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 16333, 32666, 65332, 81665, 130664, 163330, 261328, 326660, 506323, 522656, 653320, 1012646, 1306640, 2025292, 2531615, 2613280, 4050584, 5063230, 8101168, 10126460, 16202336, 20252920, 40505840, 81011680]

約数ペア:

[(1, 81011680), (2, 40505840), (4, 20252920), (5, 16202336), (8, 10126460), (10, 8101168), (16, 5063230), (20, 4050584), (31, 2613280), (32, 2531615), (40, 2025292), (62, 1306640), (80, 1012646), (124, 653320), (155, 522656), (160, 506323), (248, 326660), (310, 261328), (496, 163330), (620, 130664), (992, 81665), (1240, 65332), (2480, 32666), (4960, 16333)]