398532720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1660553}}^1$

素因数の和:1660569

約数の個数: 40

約数和(自身を含む): 1235452176

約数和(自身を除く): 836919456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1660553, 3321106, 4981659, 6642212, 8302765, 9963318, 13284424, 16605530, 19926636, 24908295, 26568848, 33211060, 39853272, 49816590, 66422120, 79706544, 99633180, 132844240, 199266360, 398532720]

約数ペア:

[(1, 398532720), (2, 199266360), (3, 132844240), (4, 99633180), (5, 79706544), (6, 66422120), (8, 49816590), (10, 39853272), (12, 33211060), (15, 26568848), (16, 24908295), (20, 19926636), (24, 16605530), (30, 13284424), (40, 9963318), (48, 8302765), (60, 6642212), (80, 4981659), (120, 3321106), (240, 1660553)]