19623880

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3581}}^1$

素因数の和:3729

約数の個数: 32

約数和(自身を含む): 44488440

約数和(自身を除く): 24864560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 3581, 5480, 7162, 14324, 17905, 28648, 35810, 71620, 143240, 490597, 981194, 1962388, 2452985, 3924776, 4905970, 9811940, 19623880]

約数ペア:

[(1, 19623880), (2, 9811940), (4, 4905970), (5, 3924776), (8, 2452985), (10, 1962388), (20, 981194), (40, 490597), (137, 143240), (274, 71620), (548, 35810), (685, 28648), (1096, 17905), (1370, 14324), (2740, 7162), (3581, 5480)]