28737775

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3371}}^1$

素因数の和:3423

約数の個数: 24

約数和(自身を含む): 40140288

約数和(自身を除く): 11402513

約数列:

[1, 5, 11, 25, 31, 55, 155, 275, 341, 775, 1705, 3371, 8525, 16855, 37081, 84275, 104501, 185405, 522505, 927025, 1149511, 2612525, 5747555, 28737775]

約数ペア:

[(1, 28737775), (5, 5747555), (11, 2612525), (25, 1149511), (31, 927025), (55, 522505), (155, 185405), (275, 104501), (341, 84275), (775, 37081), (1705, 16855), (3371, 8525)]