20357204

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:588

約数の個数: 48

約数和(自身を含む): 43008000

約数和(自身を除く): 22650796

約数列:

[1, 2, 4, 7, 14, 28, 31, 47, 62, 94, 124, 188, 217, 329, 434, 499, 658, 868, 998, 1316, 1457, 1996, 2914, 3493, 5828, 6986, 10199, 13972, 15469, 20398, 23453, 30938, 40796, 46906, 61876, 93812, 108283, 164171, 216566, 328342, 433132, 656684, 727043, 1454086, 2908172, 5089301, 10178602, 20357204]

約数ペア:

[(1, 20357204), (2, 10178602), (4, 5089301), (7, 2908172), (14, 1454086), (28, 727043), (31, 656684), (47, 433132), (62, 328342), (94, 216566), (124, 164171), (188, 108283), (217, 93812), (329, 61876), (434, 46906), (499, 40796), (658, 30938), (868, 23453), (998, 20398), (1316, 15469), (1457, 13972), (1996, 10199), (2914, 6986), (3493, 5828)]