20298765

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3461}}^1$

素因数の和:3509

約数の個数: 32

約数和(自身を含む): 35894016

約数和(自身を除く): 15595251

約数列:

[1, 3, 5, 15, 17, 23, 51, 69, 85, 115, 255, 345, 391, 1173, 1955, 3461, 5865, 10383, 17305, 51915, 58837, 79603, 176511, 238809, 294185, 398015, 882555, 1194045, 1353251, 4059753, 6766255, 20298765]

約数ペア:

[(1, 20298765), (3, 6766255), (5, 4059753), (15, 1353251), (17, 1194045), (23, 882555), (51, 398015), (69, 294185), (85, 238809), (115, 176511), (255, 79603), (345, 58837), (391, 51915), (1173, 17305), (1955, 10383), (3461, 5865)]