28452520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{13421}}^1$

素因数の和:13485

約数の個数: 32

約数和(自身を含む): 65230920

約数和(自身を除く): 36778400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 13421, 26842, 53684, 67105, 107368, 134210, 268420, 536840, 711313, 1422626, 2845252, 3556565, 5690504, 7113130, 14226260, 28452520]

約数ペア:

[(1, 28452520), (2, 14226260), (4, 7113130), (5, 5690504), (8, 3556565), (10, 2845252), (20, 1422626), (40, 711313), (53, 536840), (106, 268420), (212, 134210), (265, 107368), (424, 67105), (530, 53684), (1060, 26842), (2120, 13421)]