16402420

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{11551}}^1$

素因数の和:11631

約数の個数: 24

約数和(自身を含む): 34933248

約数和(自身を除く): 18530828

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 11551, 23102, 46204, 57755, 115510, 231020, 820121, 1640242, 3280484, 4100605, 8201210, 16402420]

約数ペア:

[(1, 16402420), (2, 8201210), (4, 4100605), (5, 3280484), (10, 1640242), (20, 820121), (71, 231020), (142, 115510), (284, 57755), (355, 46204), (710, 23102), (1420, 11551)]