2789225

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:161

約数の個数: 24

約数和(自身を含む): 3690240

約数和(自身を除く): 901015

約数列:

[1, 5, 25, 31, 59, 61, 155, 295, 305, 775, 1475, 1525, 1829, 1891, 3599, 9145, 9455, 17995, 45725, 47275, 89975, 111569, 557845, 2789225]

約数ペア:

[(1, 2789225), (5, 557845), (25, 111569), (31, 89975), (59, 47275), (61, 45725), (155, 17995), (295, 9455), (305, 9145), (775, 3599), (1475, 1891), (1525, 1829)]