28579900

素因数分解:

$2^2\times 5^2\times {\mathrm{181}}^1\times {\mathrm{1579}}^1$

素因数の和:1774

約数の個数: 36

約数和(自身を含む): 62400520

約数和(自身を除く): 33820620

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 181, 362, 724, 905, 1579, 1810, 3158, 3620, 4525, 6316, 7895, 9050, 15790, 18100, 31580, 39475, 78950, 157900, 285799, 571598, 1143196, 1428995, 2857990, 5715980, 7144975, 14289950, 28579900]

約数ペア:

[(1, 28579900), (2, 14289950), (4, 7144975), (5, 5715980), (10, 2857990), (20, 1428995), (25, 1143196), (50, 571598), (100, 285799), (181, 157900), (362, 78950), (724, 39475), (905, 31580), (1579, 18100), (1810, 15790), (3158, 9050), (3620, 7895), (4525, 6316)]