16640620

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{2879}}^1$

素因数の和:2922

約数の個数: 36

約数和(自身を含む): 37134720

約数和(自身を除く): 20494100

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2879, 2890, 5758, 5780, 11516, 14395, 28790, 48943, 57580, 97886, 195772, 244715, 489430, 832031, 978860, 1664062, 3328124, 4160155, 8320310, 16640620]

約数ペア:

[(1, 16640620), (2, 8320310), (4, 4160155), (5, 3328124), (10, 1664062), (17, 978860), (20, 832031), (34, 489430), (68, 244715), (85, 195772), (170, 97886), (289, 57580), (340, 48943), (578, 28790), (1156, 14395), (1445, 11516), (2879, 5780), (2890, 5758)]