170139980

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139459}}^1$

素因数の和:139529

約数の個数: 24

約数和(自身を含む): 363153840

約数和(自身を除く): 193013860

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 139459, 278918, 557836, 697295, 1394590, 2789180, 8506999, 17013998, 34027996, 42534995, 85069990, 170139980]

約数ペア:

[(1, 170139980), (2, 85069990), (4, 42534995), (5, 34027996), (10, 17013998), (20, 8506999), (61, 2789180), (122, 1394590), (244, 697295), (305, 557836), (610, 278918), (1220, 139459)]