397955

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:154

約数の個数: 16

約数和(自身を含む): 518400

約数和(自身を除く): 120445

約数列:

[1, 5, 19, 59, 71, 95, 295, 355, 1121, 1349, 4189, 5605, 6745, 20945, 79591, 397955]

約数ペア:

[(1, 397955), (5, 79591), (19, 20945), (59, 6745), (71, 5605), (95, 4189), (295, 1349), (355, 1121)]