655120

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:463

約数の個数: 40

約数和(自身を含む): 1607040

約数和(自身を除く): 951920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 431, 760, 862, 1520, 1724, 2155, 3448, 4310, 6896, 8189, 8620, 16378, 17240, 32756, 34480, 40945, 65512, 81890, 131024, 163780, 327560, 655120]

約数ペア:

[(1, 655120), (2, 327560), (4, 163780), (5, 131024), (8, 81890), (10, 65512), (16, 40945), (19, 34480), (20, 32756), (38, 17240), (40, 16378), (76, 8620), (80, 8189), (95, 6896), (152, 4310), (190, 3448), (304, 2155), (380, 1724), (431, 1520), (760, 862)]