157438515

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{21821}}^1$

素因数の和:21879

約数の個数: 32

約数和(自身を含む): 278623296

約数和(自身を除く): 121184781

約数列:

[1, 3, 5, 13, 15, 37, 39, 65, 111, 185, 195, 481, 555, 1443, 2405, 7215, 21821, 65463, 109105, 283673, 327315, 807377, 851019, 1418365, 2422131, 4036885, 4255095, 10495901, 12110655, 31487703, 52479505, 157438515]

約数ペア:

[(1, 157438515), (3, 52479505), (5, 31487703), (13, 12110655), (15, 10495901), (37, 4255095), (39, 4036885), (65, 2422131), (111, 1418365), (185, 851019), (195, 807377), (481, 327315), (555, 283673), (1443, 109105), (2405, 65463), (7215, 21821)]