218717380

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{31883}}^1$

素因数の和:31913

約数の個数: 48

約数和(自身を含む): 535651200

約数和(自身を除く): 316933820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 31883, 63766, 127532, 159415, 223181, 318830, 446362, 637660, 892724, 1115905, 1562267, 2231810, 3124534, 4463620, 6249068, 7811335, 10935869, 15622670, 21871738, 31245340, 43743476, 54679345, 109358690, 218717380]

約数ペア:

[(1, 218717380), (2, 109358690), (4, 54679345), (5, 43743476), (7, 31245340), (10, 21871738), (14, 15622670), (20, 10935869), (28, 7811335), (35, 6249068), (49, 4463620), (70, 3124534), (98, 2231810), (140, 1562267), (196, 1115905), (245, 892724), (343, 637660), (490, 446362), (686, 318830), (980, 223181), (1372, 159415), (1715, 127532), (3430, 63766), (6860, 31883)]