4247840

素因数分解:

$2^5\times 5^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:345

約数の個数: 48

約数和(自身を含む): 10160640

約数和(自身を除く): 5912800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 139, 160, 191, 278, 382, 556, 695, 764, 955, 1112, 1390, 1528, 1910, 2224, 2780, 3056, 3820, 4448, 5560, 6112, 7640, 11120, 15280, 22240, 26549, 30560, 53098, 106196, 132745, 212392, 265490, 424784, 530980, 849568, 1061960, 2123920, 4247840]

約数ペア:

[(1, 4247840), (2, 2123920), (4, 1061960), (5, 849568), (8, 530980), (10, 424784), (16, 265490), (20, 212392), (32, 132745), (40, 106196), (80, 53098), (139, 30560), (160, 26549), (191, 22240), (278, 15280), (382, 11120), (556, 7640), (695, 6112), (764, 5560), (955, 4448), (1112, 3820), (1390, 3056), (1528, 2780), (1910, 2224)]