18116720

素因数分解:

$2^4\times 5^1\times {\mathrm{433}}^1\times {\mathrm{523}}^1$

素因数の和:969

約数の個数: 40

約数和(自身を含む): 42299376

約数和(自身を除く): 24182656

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 433, 523, 866, 1046, 1732, 2092, 2165, 2615, 3464, 4184, 4330, 5230, 6928, 8368, 8660, 10460, 17320, 20920, 34640, 41840, 226459, 452918, 905836, 1132295, 1811672, 2264590, 3623344, 4529180, 9058360, 18116720]

約数ペア:

[(1, 18116720), (2, 9058360), (4, 4529180), (5, 3623344), (8, 2264590), (10, 1811672), (16, 1132295), (20, 905836), (40, 452918), (80, 226459), (433, 41840), (523, 34640), (866, 20920), (1046, 17320), (1732, 10460), (2092, 8660), (2165, 8368), (2615, 6928), (3464, 5230), (4184, 4330)]