208025456

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{149}}^1\times {\mathrm{1229}}^1$

素因数の和:1457

約数の個数: 40

約数和(自身を含む): 411804000

約数和(自身を除く): 203778544

約数列:

[1, 2, 4, 8, 16, 71, 142, 149, 284, 298, 568, 596, 1136, 1192, 1229, 2384, 2458, 4916, 9832, 10579, 19664, 21158, 42316, 84632, 87259, 169264, 174518, 183121, 349036, 366242, 698072, 732484, 1396144, 1464968, 2929936, 13001591, 26003182, 52006364, 104012728, 208025456]

約数ペア:

[(1, 208025456), (2, 104012728), (4, 52006364), (8, 26003182), (16, 13001591), (71, 2929936), (142, 1464968), (149, 1396144), (284, 732484), (298, 698072), (568, 366242), (596, 349036), (1136, 183121), (1192, 174518), (1229, 169264), (2384, 87259), (2458, 84632), (4916, 42316), (9832, 21158), (10579, 19664)]