18400900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{271}}^1$

素因数の和:389

約数の個数: 72

約数和(自身を含む): 46274816

約数和(自身を除く): 27873916

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 97, 100, 140, 175, 194, 271, 350, 388, 485, 542, 679, 700, 970, 1084, 1355, 1358, 1897, 1940, 2425, 2710, 2716, 3395, 3794, 4850, 5420, 6775, 6790, 7588, 9485, 9700, 13550, 13580, 16975, 18970, 26287, 27100, 33950, 37940, 47425, 52574, 67900, 94850, 105148, 131435, 184009, 189700, 262870, 368018, 525740, 657175, 736036, 920045, 1314350, 1840090, 2628700, 3680180, 4600225, 9200450, 18400900]

約数ペア:

[(1, 18400900), (2, 9200450), (4, 4600225), (5, 3680180), (7, 2628700), (10, 1840090), (14, 1314350), (20, 920045), (25, 736036), (28, 657175), (35, 525740), (50, 368018), (70, 262870), (97, 189700), (100, 184009), (140, 131435), (175, 105148), (194, 94850), (271, 67900), (350, 52574), (388, 47425), (485, 37940), (542, 33950), (679, 27100), (700, 26287), (970, 18970), (1084, 16975), (1355, 13580), (1358, 13550), (1897, 9700), (1940, 9485), (2425, 7588), (2710, 6790), (2716, 6775), (3395, 5420), (3794, 4850)]