28663840

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5779}}^1$

素因数の和:5825

約数の個数: 48

約数和(自身を含む): 69914880

約数和(自身を除く): 41251040

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, 5779, 11558, 23116, 28895, 46232, 57790, 92464, 115580, 179149, 184928, 231160, 358298, 462320, 716596, 895745, 924640, 1433192, 1791490, 2866384, 3582980, 5732768, 7165960, 14331920, 28663840]

約数ペア:

[(1, 28663840), (2, 14331920), (4, 7165960), (5, 5732768), (8, 3582980), (10, 2866384), (16, 1791490), (20, 1433192), (31, 924640), (32, 895745), (40, 716596), (62, 462320), (80, 358298), (124, 231160), (155, 184928), (160, 179149), (248, 115580), (310, 92464), (496, 57790), (620, 46232), (992, 28895), (1240, 23116), (2480, 11558), (4960, 5779)]