680811800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{179161}}^1$

素因数の和:179196

約数の個数: 48

約数和(自身を含む): 1666206600

約数和(自身を除く): 985394800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 179161, 358322, 716644, 895805, 1433288, 1791610, 3404059, 3583220, 4479025, 6808118, 7166440, 8958050, 13616236, 17020295, 17916100, 27232472, 34040590, 35832200, 68081180, 85101475, 136162360, 170202950, 340405900, 680811800]

約数ペア:

[(1, 680811800), (2, 340405900), (4, 170202950), (5, 136162360), (8, 85101475), (10, 68081180), (19, 35832200), (20, 34040590), (25, 27232472), (38, 17916100), (40, 17020295), (50, 13616236), (76, 8958050), (95, 7166440), (100, 6808118), (152, 4479025), (190, 3583220), (200, 3404059), (380, 1791610), (475, 1433288), (760, 895805), (950, 716644), (1900, 358322), (3800, 179161)]