28605915

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{457}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 54014688

約数和(自身を除く): 25408773

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 107, 117, 195, 321, 457, 535, 585, 963, 1371, 1391, 1605, 2285, 4113, 4173, 4815, 5941, 6855, 6955, 12519, 17823, 20565, 20865, 29705, 48899, 53469, 62595, 89115, 146697, 244495, 267345, 440091, 635687, 733485, 1907061, 2200455, 3178435, 5721183, 9535305, 28605915]

約数ペア:

[(1, 28605915), (3, 9535305), (5, 5721183), (9, 3178435), (13, 2200455), (15, 1907061), (39, 733485), (45, 635687), (65, 440091), (107, 267345), (117, 244495), (195, 146697), (321, 89115), (457, 62595), (535, 53469), (585, 48899), (963, 29705), (1371, 20865), (1391, 20565), (1605, 17823), (2285, 12519), (4113, 6955), (4173, 6855), (4815, 5941)]