27989560

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16273}}^1$

素因数の和:16327

約数の個数: 32

約数和(自身を含む): 64445040

約数和(自身を除く): 36455480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16273, 32546, 65092, 81365, 130184, 162730, 325460, 650920, 699739, 1399478, 2798956, 3498695, 5597912, 6997390, 13994780, 27989560]

約数ペア:

[(1, 27989560), (2, 13994780), (4, 6997390), (5, 5597912), (8, 3498695), (10, 2798956), (20, 1399478), (40, 699739), (43, 650920), (86, 325460), (172, 162730), (215, 130184), (344, 81365), (430, 65092), (860, 32546), (1720, 16273)]