197972645

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1\times {\mathrm{367}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 263864832

約数和(自身を除く): 65892187

約数列:

[1, 5, 13, 43, 65, 193, 215, 367, 559, 965, 1835, 2509, 2795, 4771, 8299, 12545, 15781, 23855, 41495, 70831, 78905, 107887, 205153, 354155, 539435, 920803, 1025765, 3045733, 4604015, 15228665, 39594529, 197972645]

約数ペア:

[(1, 197972645), (5, 39594529), (13, 15228665), (43, 4604015), (65, 3045733), (193, 1025765), (215, 920803), (367, 539435), (559, 354155), (965, 205153), (1835, 107887), (2509, 78905), (2795, 70831), (4771, 41495), (8299, 23855), (12545, 15781)]