1272440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2447}}^1$

素因数の和:2471

約数の個数: 32

約数和(自身を含む): 3084480

約数和(自身を除く): 1812040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 2447, 4894, 9788, 12235, 19576, 24470, 31811, 48940, 63622, 97880, 127244, 159055, 254488, 318110, 636220, 1272440]

約数ペア:

[(1, 1272440), (2, 636220), (4, 318110), (5, 254488), (8, 159055), (10, 127244), (13, 97880), (20, 63622), (26, 48940), (40, 31811), (52, 24470), (65, 19576), (104, 12235), (130, 9788), (260, 4894), (520, 2447)]