27990495

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{389}}^1$

素因数の和:457

約数の個数: 64

約数和(自身を含む): 55036800

約数和(自身を除く): 27046305

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 41, 45, 65, 117, 123, 135, 195, 205, 351, 369, 389, 533, 585, 615, 1107, 1167, 1599, 1755, 1845, 1945, 2665, 3501, 4797, 5057, 5535, 5835, 7995, 10503, 14391, 15171, 15949, 17505, 23985, 25285, 45513, 47847, 52515, 71955, 75855, 79745, 136539, 143541, 207337, 227565, 239235, 430623, 622011, 682695, 717705, 1036685, 1866033, 2153115, 3110055, 5598099, 9330165, 27990495]

約数ペア:

[(1, 27990495), (3, 9330165), (5, 5598099), (9, 3110055), (13, 2153115), (15, 1866033), (27, 1036685), (39, 717705), (41, 682695), (45, 622011), (65, 430623), (117, 239235), (123, 227565), (135, 207337), (195, 143541), (205, 136539), (351, 79745), (369, 75855), (389, 71955), (533, 52515), (585, 47847), (615, 45513), (1107, 25285), (1167, 23985), (1599, 17505), (1755, 15949), (1845, 15171), (1945, 14391), (2665, 10503), (3501, 7995), (4797, 5835), (5057, 5535)]