20057996

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1019}}^1$

素因数の和:1086

約数の個数: 48

約数和(自身を含む): 43411200

約数和(自身を除く): 23353204

約数列:

[1, 2, 4, 7, 14, 19, 28, 37, 38, 74, 76, 133, 148, 259, 266, 518, 532, 703, 1019, 1036, 1406, 2038, 2812, 4076, 4921, 7133, 9842, 14266, 19361, 19684, 28532, 37703, 38722, 75406, 77444, 135527, 150812, 263921, 271054, 527842, 542108, 716357, 1055684, 1432714, 2865428, 5014499, 10028998, 20057996]

約数ペア:

[(1, 20057996), (2, 10028998), (4, 5014499), (7, 2865428), (14, 1432714), (19, 1055684), (28, 716357), (37, 542108), (38, 527842), (74, 271054), (76, 263921), (133, 150812), (148, 135527), (259, 77444), (266, 75406), (518, 38722), (532, 37703), (703, 28532), (1019, 19684), (1036, 19361), (1406, 14266), (2038, 9842), (2812, 7133), (4076, 4921)]