20312178

素因数分解:

$2^1\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{223}}^1$

素因数の和:311

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 26136462

約数列:

[1, 2, 3, 6, 17, 19, 34, 38, 47, 51, 57, 94, 102, 114, 141, 223, 282, 323, 446, 646, 669, 799, 893, 969, 1338, 1598, 1786, 1938, 2397, 2679, 3791, 4237, 4794, 5358, 7582, 8474, 10481, 11373, 12711, 15181, 20962, 22746, 25422, 30362, 31443, 45543, 62886, 72029, 91086, 144058, 178177, 199139, 216087, 356354, 398278, 432174, 534531, 597417, 1069062, 1194834, 3385363, 6770726, 10156089, 20312178]

約数ペア:

[(1, 20312178), (2, 10156089), (3, 6770726), (6, 3385363), (17, 1194834), (19, 1069062), (34, 597417), (38, 534531), (47, 432174), (51, 398278), (57, 356354), (94, 216087), (102, 199139), (114, 178177), (141, 144058), (223, 91086), (282, 72029), (323, 62886), (446, 45543), (646, 31443), (669, 30362), (799, 25422), (893, 22746), (969, 20962), (1338, 15181), (1598, 12711), (1786, 11373), (1938, 10481), (2397, 8474), (2679, 7582), (3791, 5358), (4237, 4794)]