20180132

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{347}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 42405888

約数和(自身を除く): 22225756

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 67, 124, 134, 217, 268, 347, 434, 469, 694, 868, 938, 1388, 1876, 2077, 2429, 4154, 4858, 8308, 9716, 10757, 14539, 21514, 23249, 29078, 43028, 46498, 58156, 75299, 92996, 150598, 162743, 301196, 325486, 650972, 720719, 1441438, 2882876, 5045033, 10090066, 20180132]

約数ペア:

[(1, 20180132), (2, 10090066), (4, 5045033), (7, 2882876), (14, 1441438), (28, 720719), (31, 650972), (62, 325486), (67, 301196), (124, 162743), (134, 150598), (217, 92996), (268, 75299), (347, 58156), (434, 46498), (469, 43028), (694, 29078), (868, 23249), (938, 21514), (1388, 14539), (1876, 10757), (2077, 9716), (2429, 8308), (4154, 4858)]