28625175

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:193

約数の個数: 72

約数和(自身を含む): 54840240

約数和(自身を除く): 26215065

約数列:

[1, 3, 5, 9, 15, 25, 29, 41, 45, 75, 87, 107, 123, 145, 205, 225, 261, 321, 369, 435, 535, 615, 725, 963, 1025, 1189, 1305, 1605, 1845, 2175, 2675, 3075, 3103, 3567, 4387, 4815, 5945, 6525, 8025, 9225, 9309, 10701, 13161, 15515, 17835, 21935, 24075, 27927, 29725, 39483, 46545, 53505, 65805, 77575, 89175, 109675, 127223, 139635, 197415, 232725, 267525, 329025, 381669, 636115, 698175, 987075, 1145007, 1908345, 3180575, 5725035, 9541725, 28625175]

約数ペア:

[(1, 28625175), (3, 9541725), (5, 5725035), (9, 3180575), (15, 1908345), (25, 1145007), (29, 987075), (41, 698175), (45, 636115), (75, 381669), (87, 329025), (107, 267525), (123, 232725), (145, 197415), (205, 139635), (225, 127223), (261, 109675), (321, 89175), (369, 77575), (435, 65805), (535, 53505), (615, 46545), (725, 39483), (963, 29725), (1025, 27927), (1189, 24075), (1305, 21935), (1605, 17835), (1845, 15515), (2175, 13161), (2675, 10701), (3075, 9309), (3103, 9225), (3567, 8025), (4387, 6525), (4815, 5945)]