61138580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{251}}^1\times {\mathrm{641}}^1$

素因数の和:920

約数の個数: 48

約数和(自身を含む): 135898560

約数和(自身を除く): 74759980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 251, 380, 502, 641, 1004, 1255, 1282, 2510, 2564, 3205, 4769, 5020, 6410, 9538, 12179, 12820, 19076, 23845, 24358, 47690, 48716, 60895, 95380, 121790, 160891, 243580, 321782, 643564, 804455, 1608910, 3056929, 3217820, 6113858, 12227716, 15284645, 30569290, 61138580]

約数ペア:

[(1, 61138580), (2, 30569290), (4, 15284645), (5, 12227716), (10, 6113858), (19, 3217820), (20, 3056929), (38, 1608910), (76, 804455), (95, 643564), (190, 321782), (251, 243580), (380, 160891), (502, 121790), (641, 95380), (1004, 60895), (1255, 48716), (1282, 47690), (2510, 24358), (2564, 23845), (3205, 19076), (4769, 12820), (5020, 12179), (6410, 9538)]