18872975

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{367}}^1$

素因数の和:416

約数の個数: 36

約数和(自身を含む): 27310752

約数和(自身を除く): 8437777

約数列:

[1, 5, 11, 17, 25, 55, 85, 121, 187, 275, 367, 425, 605, 935, 1835, 2057, 3025, 4037, 4675, 6239, 9175, 10285, 20185, 31195, 44407, 51425, 68629, 100925, 155975, 222035, 343145, 754919, 1110175, 1715725, 3774595, 18872975]

約数ペア:

[(1, 18872975), (5, 3774595), (11, 1715725), (17, 1110175), (25, 754919), (55, 343145), (85, 222035), (121, 155975), (187, 100925), (275, 68629), (367, 51425), (425, 44407), (605, 31195), (935, 20185), (1835, 10285), (2057, 9175), (3025, 6239), (4037, 4675)]