20182120

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{1471}}^1$

素因数の和:1503

約数の個数: 64

約数和(自身を含む): 52992000

約数和(自身を除く): 32809880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1471, 1715, 1960, 2744, 2942, 3430, 5884, 6860, 7355, 10297, 11768, 13720, 14710, 20594, 29420, 41188, 51485, 58840, 72079, 82376, 102970, 144158, 205940, 288316, 360395, 411880, 504553, 576632, 720790, 1009106, 1441580, 2018212, 2522765, 2883160, 4036424, 5045530, 10091060, 20182120]

約数ペア:

[(1, 20182120), (2, 10091060), (4, 5045530), (5, 4036424), (7, 2883160), (8, 2522765), (10, 2018212), (14, 1441580), (20, 1009106), (28, 720790), (35, 576632), (40, 504553), (49, 411880), (56, 360395), (70, 288316), (98, 205940), (140, 144158), (196, 102970), (245, 82376), (280, 72079), (343, 58840), (392, 51485), (490, 41188), (686, 29420), (980, 20594), (1372, 14710), (1471, 13720), (1715, 11768), (1960, 10297), (2744, 7355), (2942, 6860), (3430, 5884)]