278350945

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{823}}^1$

素因数の和:1041

約数の個数: 32

約数和(自身を含む): 371630592

約数和(自身を除く): 93279647

約数列:

[1, 5, 17, 23, 85, 115, 173, 391, 823, 865, 1955, 2941, 3979, 4115, 13991, 14705, 18929, 19895, 67643, 69955, 94645, 142379, 321793, 338215, 711895, 1608965, 2420443, 3274717, 12102215, 16373585, 55670189, 278350945]

約数ペア:

[(1, 278350945), (5, 55670189), (17, 16373585), (23, 12102215), (85, 3274717), (115, 2420443), (173, 1608965), (391, 711895), (823, 338215), (865, 321793), (1955, 142379), (2941, 94645), (3979, 69955), (4115, 67643), (13991, 19895), (14705, 18929)]