19807360

素因数分解:

$2^7\times 5^1\times {\mathrm{30949}}^1$

素因数の和:30968

約数の個数: 32

約数和(自身を含む): 47353500

約数和(自身を除く): 27546140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 30949, 61898, 123796, 154745, 247592, 309490, 495184, 618980, 990368, 1237960, 1980736, 2475920, 3961472, 4951840, 9903680, 19807360]

約数ペア:

[(1, 19807360), (2, 9903680), (4, 4951840), (5, 3961472), (8, 2475920), (10, 1980736), (16, 1237960), (20, 990368), (32, 618980), (40, 495184), (64, 309490), (80, 247592), (128, 154745), (160, 123796), (320, 61898), (640, 30949)]