280354245

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{2089}}^1$

素因数の和:2509

約数の個数: 32

約数和(自身を含む): 469497600

約数和(自身を除く): 189143355

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 389, 1167, 1945, 2089, 5835, 6267, 8947, 10445, 26841, 31335, 44735, 48047, 134205, 144141, 240235, 720705, 812621, 2437863, 4063105, 12189315, 18690283, 56070849, 93451415, 280354245]

約数ペア:

[(1, 280354245), (3, 93451415), (5, 56070849), (15, 18690283), (23, 12189315), (69, 4063105), (115, 2437863), (345, 812621), (389, 720705), (1167, 240235), (1945, 144141), (2089, 134205), (5835, 48047), (6267, 44735), (8947, 31335), (10445, 26841)]