129208075

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{16001}}^1$

素因数の和:16047

約数の個数: 24

約数和(自身を含む): 178582320

約数和(自身を除く): 49374245

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 8075, 16001, 80005, 272017, 304019, 400025, 1360085, 1520095, 5168323, 6800425, 7600475, 25841615, 129208075]

約数ペア:

[(1, 129208075), (5, 25841615), (17, 7600475), (19, 6800425), (25, 5168323), (85, 1520095), (95, 1360085), (323, 400025), (425, 304019), (475, 272017), (1615, 80005), (8075, 16001)]