99161720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{354149}}^1$

素因数の和:354167

約数の個数: 32

約数和(自身を含む): 254988000

約数和(自身を除く): 155826280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 354149, 708298, 1416596, 1770745, 2479043, 2833192, 3541490, 4958086, 7082980, 9916172, 12395215, 14165960, 19832344, 24790430, 49580860, 99161720]

約数ペア:

[(1, 99161720), (2, 49580860), (4, 24790430), (5, 19832344), (7, 14165960), (8, 12395215), (10, 9916172), (14, 7082980), (20, 4958086), (28, 3541490), (35, 2833192), (40, 2479043), (56, 1770745), (70, 1416596), (140, 708298), (280, 354149)]