28365225

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{557}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 54246528

約数和(自身を除く): 25881303

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 97, 105, 175, 291, 485, 525, 557, 679, 1455, 1671, 2037, 2425, 2785, 3395, 3899, 7275, 8355, 10185, 11697, 13925, 16975, 19495, 41775, 50925, 54029, 58485, 97475, 162087, 270145, 292425, 378203, 810435, 1134609, 1350725, 1891015, 4052175, 5673045, 9455075, 28365225]

約数ペア:

[(1, 28365225), (3, 9455075), (5, 5673045), (7, 4052175), (15, 1891015), (21, 1350725), (25, 1134609), (35, 810435), (75, 378203), (97, 292425), (105, 270145), (175, 162087), (291, 97475), (485, 58485), (525, 54029), (557, 50925), (679, 41775), (1455, 19495), (1671, 16975), (2037, 13925), (2425, 11697), (2785, 10185), (3395, 8355), (3899, 7275)]