205657907

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{379}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 260467200

約数和(自身を除く): 54809293

約数列:

[1, 7, 13, 67, 89, 91, 379, 469, 623, 871, 1157, 2653, 4927, 5963, 6097, 8099, 25393, 33731, 34489, 41741, 77519, 177751, 236117, 330109, 438503, 542633, 2259977, 2310763, 3069521, 15819839, 29379701, 205657907]

約数ペア:

[(1, 205657907), (7, 29379701), (13, 15819839), (67, 3069521), (89, 2310763), (91, 2259977), (379, 542633), (469, 438503), (623, 330109), (871, 236117), (1157, 177751), (2653, 77519), (4927, 41741), (5963, 34489), (6097, 33731), (8099, 25393)]