25749620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{1021}}^1$

素因数の和:1140

約数の個数: 48

約数和(自身を含む): 58891728

約数和(自身を除く): 33142108

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 97, 130, 194, 260, 388, 485, 970, 1021, 1261, 1940, 2042, 2522, 4084, 5044, 5105, 6305, 10210, 12610, 13273, 20420, 25220, 26546, 53092, 66365, 99037, 132730, 198074, 265460, 396148, 495185, 990370, 1287481, 1980740, 2574962, 5149924, 6437405, 12874810, 25749620]

約数ペア:

[(1, 25749620), (2, 12874810), (4, 6437405), (5, 5149924), (10, 2574962), (13, 1980740), (20, 1287481), (26, 990370), (52, 495185), (65, 396148), (97, 265460), (130, 198074), (194, 132730), (260, 99037), (388, 66365), (485, 53092), (970, 26546), (1021, 25220), (1261, 20420), (1940, 13273), (2042, 12610), (2522, 10210), (4084, 6305), (5044, 5105)]