491480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1117}}^1$

素因数の和:1139

約数の個数: 32

約数和(自身を含む): 1207440

約数和(自身を除く): 715960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 1117, 2234, 4468, 5585, 8936, 11170, 12287, 22340, 24574, 44680, 49148, 61435, 98296, 122870, 245740, 491480]

約数ペア:

[(1, 491480), (2, 245740), (4, 122870), (5, 98296), (8, 61435), (10, 49148), (11, 44680), (20, 24574), (22, 22340), (40, 12287), (44, 11170), (55, 8936), (88, 5585), (110, 4468), (220, 2234), (440, 1117)]