20759720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{30529}}^1$

素因数の和:30557

約数の個数: 32

約数和(自身を含む): 49458600

約数和(自身を除く): 28698880

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 30529, 61058, 122116, 152645, 244232, 305290, 518993, 610580, 1037986, 1221160, 2075972, 2594965, 4151944, 5189930, 10379860, 20759720]

約数ペア:

[(1, 20759720), (2, 10379860), (4, 5189930), (5, 4151944), (8, 2594965), (10, 2075972), (17, 1221160), (20, 1037986), (34, 610580), (40, 518993), (68, 305290), (85, 244232), (136, 152645), (170, 122116), (340, 61058), (680, 30529)]