128213995

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{14831}}^1$

素因数の和:14875

約数の個数: 32

約数和(自身を含む): 199342080

約数和(自身を除く): 71128085

約数列:

[1, 5, 7, 13, 19, 35, 65, 91, 95, 133, 247, 455, 665, 1235, 1729, 8645, 14831, 74155, 103817, 192803, 281789, 519085, 964015, 1349621, 1408945, 1972523, 3663257, 6748105, 9862615, 18316285, 25642799, 128213995]

約数ペア:

[(1, 128213995), (5, 25642799), (7, 18316285), (13, 9862615), (19, 6748105), (35, 3663257), (65, 1972523), (91, 1408945), (95, 1349621), (133, 964015), (247, 519085), (455, 281789), (665, 192803), (1235, 103817), (1729, 74155), (8645, 14831)]