16991360

素因数分解:

$2^7\times 5^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:349

約数の個数: 64

約数和(自身を含む): 41126400

約数和(自身を除く): 24135040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 139, 160, 191, 278, 320, 382, 556, 640, 695, 764, 955, 1112, 1390, 1528, 1910, 2224, 2780, 3056, 3820, 4448, 5560, 6112, 7640, 8896, 11120, 12224, 15280, 17792, 22240, 24448, 26549, 30560, 44480, 53098, 61120, 88960, 106196, 122240, 132745, 212392, 265490, 424784, 530980, 849568, 1061960, 1699136, 2123920, 3398272, 4247840, 8495680, 16991360]

約数ペア:

[(1, 16991360), (2, 8495680), (4, 4247840), (5, 3398272), (8, 2123920), (10, 1699136), (16, 1061960), (20, 849568), (32, 530980), (40, 424784), (64, 265490), (80, 212392), (128, 132745), (139, 122240), (160, 106196), (191, 88960), (278, 61120), (320, 53098), (382, 44480), (556, 30560), (640, 26549), (695, 24448), (764, 22240), (955, 17792), (1112, 15280), (1390, 12224), (1528, 11120), (1910, 8896), (2224, 7640), (2780, 6112), (3056, 5560), (3820, 4448)]