399551425

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10331}}^1$

素因数の和:10378

約数の個数: 48

約数和(自身を含む): 645708672

約数和(自身を除く): 246157247

約数列:

[1, 5, 7, 13, 17, 25, 35, 65, 85, 91, 119, 175, 221, 325, 425, 455, 595, 1105, 1547, 2275, 2975, 5525, 7735, 10331, 38675, 51655, 72317, 134303, 175627, 258275, 361585, 671515, 878135, 940121, 1229389, 1807925, 2283151, 3357575, 4390675, 4700605, 6146945, 11415755, 15982057, 23503025, 30734725, 57078775, 79910285, 399551425]

約数ペア:

[(1, 399551425), (5, 79910285), (7, 57078775), (13, 30734725), (17, 23503025), (25, 15982057), (35, 11415755), (65, 6146945), (85, 4700605), (91, 4390675), (119, 3357575), (175, 2283151), (221, 1807925), (325, 1229389), (425, 940121), (455, 878135), (595, 671515), (1105, 361585), (1547, 258275), (2275, 175627), (2975, 134303), (5525, 72317), (7735, 51655), (10331, 38675)]