18972140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1039}}^1$

素因数の和:1142

約数の個数: 48

約数和(自身を含む): 44029440

約数和(自身を除く): 25057300

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 83, 110, 166, 220, 332, 415, 830, 913, 1039, 1660, 1826, 2078, 3652, 4156, 4565, 5195, 9130, 10390, 11429, 18260, 20780, 22858, 45716, 57145, 86237, 114290, 172474, 228580, 344948, 431185, 862370, 948607, 1724740, 1897214, 3794428, 4743035, 9486070, 18972140]

約数ペア:

[(1, 18972140), (2, 9486070), (4, 4743035), (5, 3794428), (10, 1897214), (11, 1724740), (20, 948607), (22, 862370), (44, 431185), (55, 344948), (83, 228580), (110, 172474), (166, 114290), (220, 86237), (332, 57145), (415, 45716), (830, 22858), (913, 20780), (1039, 18260), (1660, 11429), (1826, 10390), (2078, 9130), (3652, 5195), (4156, 4565)]