18541220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2371}}^1$

素因数の和:2420

約数の個数: 48

約数和(自身を含む): 43037568

約数和(自身を除く): 24496348

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 2371, 3910, 4742, 7820, 9484, 11855, 23710, 40307, 47420, 54533, 80614, 109066, 161228, 201535, 218132, 272665, 403070, 545330, 806140, 927061, 1090660, 1854122, 3708244, 4635305, 9270610, 18541220]

約数ペア:

[(1, 18541220), (2, 9270610), (4, 4635305), (5, 3708244), (10, 1854122), (17, 1090660), (20, 927061), (23, 806140), (34, 545330), (46, 403070), (68, 272665), (85, 218132), (92, 201535), (115, 161228), (170, 109066), (230, 80614), (340, 54533), (391, 47420), (460, 40307), (782, 23710), (1564, 11855), (1955, 9484), (2371, 7820), (3910, 4742)]