18227825

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{557}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 29890944

約数和(自身を除く): 11663119

約数列:

[1, 5, 7, 11, 17, 25, 35, 55, 77, 85, 119, 175, 187, 275, 385, 425, 557, 595, 935, 1309, 1925, 2785, 2975, 3899, 4675, 6127, 6545, 9469, 13925, 19495, 30635, 32725, 42889, 47345, 66283, 97475, 104159, 153175, 214445, 236725, 331415, 520795, 729113, 1072225, 1657075, 2603975, 3645565, 18227825]

約数ペア:

[(1, 18227825), (5, 3645565), (7, 2603975), (11, 1657075), (17, 1072225), (25, 729113), (35, 520795), (55, 331415), (77, 236725), (85, 214445), (119, 153175), (175, 104159), (187, 97475), (275, 66283), (385, 47345), (425, 42889), (557, 32725), (595, 30635), (935, 19495), (1309, 13925), (1925, 9469), (2785, 6545), (2975, 6127), (3899, 4675)]