20254325

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 32081280

約数和(自身を除く): 11826955

約数列:

[1, 5, 7, 13, 25, 29, 35, 65, 91, 145, 175, 203, 307, 325, 377, 455, 725, 1015, 1535, 1885, 2149, 2275, 2639, 3991, 5075, 7675, 8903, 9425, 10745, 13195, 19955, 27937, 44515, 53725, 62321, 65975, 99775, 115739, 139685, 222575, 311605, 578695, 698425, 810173, 1558025, 2893475, 4050865, 20254325]

約数ペア:

[(1, 20254325), (5, 4050865), (7, 2893475), (13, 1558025), (25, 810173), (29, 698425), (35, 578695), (65, 311605), (91, 222575), (145, 139685), (175, 115739), (203, 99775), (307, 65975), (325, 62321), (377, 53725), (455, 44515), (725, 27937), (1015, 19955), (1535, 13195), (1885, 10745), (2149, 9425), (2275, 8903), (2639, 7675), (3991, 5075)]