28051280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11311}}^1$

素因数の和:11355

約数の個数: 40

約数和(自身を含む): 67329024

約数和(自身を除く): 39277744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 11311, 22622, 45244, 56555, 90488, 113110, 180976, 226220, 350641, 452440, 701282, 904880, 1402564, 1753205, 2805128, 3506410, 5610256, 7012820, 14025640, 28051280]

約数ペア:

[(1, 28051280), (2, 14025640), (4, 7012820), (5, 5610256), (8, 3506410), (10, 2805128), (16, 1753205), (20, 1402564), (31, 904880), (40, 701282), (62, 452440), (80, 350641), (124, 226220), (155, 180976), (248, 113110), (310, 90488), (496, 56555), (620, 45244), (1240, 22622), (2480, 11311)]