25220728

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{1231}}^1$

素因数の和:1447

約数の個数: 32

約数和(自身を含む): 51226560

約数和(自身を除く): 26005832

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 197, 394, 788, 1231, 1576, 2462, 2561, 4924, 5122, 9848, 10244, 16003, 20488, 32006, 64012, 128024, 242507, 485014, 970028, 1940056, 3152591, 6305182, 12610364, 25220728]

約数ペア:

[(1, 25220728), (2, 12610364), (4, 6305182), (8, 3152591), (13, 1940056), (26, 970028), (52, 485014), (104, 242507), (197, 128024), (394, 64012), (788, 32006), (1231, 20488), (1576, 16003), (2462, 10244), (2561, 9848), (4924, 5122)]