313680880

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{206369}}^1$

素因数の和:206401

約数の個数: 40

約数和(自身を含む): 767696400

約数和(自身を除く): 454015520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 206369, 412738, 825476, 1031845, 1650952, 2063690, 3301904, 3921011, 4127380, 7842022, 8254760, 15684044, 16509520, 19605055, 31368088, 39210110, 62736176, 78420220, 156840440, 313680880]

約数ペア:

[(1, 313680880), (2, 156840440), (4, 78420220), (5, 62736176), (8, 39210110), (10, 31368088), (16, 19605055), (19, 16509520), (20, 15684044), (38, 8254760), (40, 7842022), (76, 4127380), (80, 3921011), (95, 3301904), (152, 2063690), (190, 1650952), (304, 1031845), (380, 825476), (760, 412738), (1520, 206369)]