1213318820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{298847}}^1$

素因数の和:298892

約数の個数: 48

約数和(自身を含む): 3012387840

約数和(自身を除く): 1799069020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 298847, 597694, 1195388, 1494235, 2091929, 2988470, 4183858, 5976940, 8367716, 8666563, 10459645, 17333126, 20919290, 34666252, 41838580, 43332815, 60665941, 86665630, 121331882, 173331260, 242663764, 303329705, 606659410, 1213318820]

約数ペア:

[(1, 1213318820), (2, 606659410), (4, 303329705), (5, 242663764), (7, 173331260), (10, 121331882), (14, 86665630), (20, 60665941), (28, 43332815), (29, 41838580), (35, 34666252), (58, 20919290), (70, 17333126), (116, 10459645), (140, 8666563), (145, 8367716), (203, 5976940), (290, 4183858), (406, 2988470), (580, 2091929), (812, 1494235), (1015, 1195388), (2030, 597694), (4060, 298847)]