7780880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5119}}^1$

素因数の和:5151

約数の個数: 40

約数和(自身を含む): 19046400

約数和(自身を除く): 11265520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 5119, 10238, 20476, 25595, 40952, 51190, 81904, 97261, 102380, 194522, 204760, 389044, 409520, 486305, 778088, 972610, 1556176, 1945220, 3890440, 7780880]

約数ペア:

[(1, 7780880), (2, 3890440), (4, 1945220), (5, 1556176), (8, 972610), (10, 778088), (16, 486305), (19, 409520), (20, 389044), (38, 204760), (40, 194522), (76, 102380), (80, 97261), (95, 81904), (152, 51190), (190, 40952), (304, 25595), (380, 20476), (760, 10238), (1520, 5119)]