28429880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16529}}^1$

素因数の和:16583

約数の個数: 32

約数和(自身を含む): 65458800

約数和(自身を除く): 37028920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 16529, 33058, 66116, 82645, 132232, 165290, 330580, 661160, 710747, 1421494, 2842988, 3553735, 5685976, 7107470, 14214940, 28429880]

約数ペア:

[(1, 28429880), (2, 14214940), (4, 7107470), (5, 5685976), (8, 3553735), (10, 2842988), (20, 1421494), (40, 710747), (43, 661160), (86, 330580), (172, 165290), (215, 132232), (344, 82645), (430, 66116), (860, 33058), (1720, 16529)]