18435860

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{12983}}^1$

素因数の和:13063

約数の個数: 24

約数和(自身を含む): 39263616

約数和(自身を除く): 20827756

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 12983, 25966, 51932, 64915, 129830, 259660, 921793, 1843586, 3687172, 4608965, 9217930, 18435860]

約数ペア:

[(1, 18435860), (2, 9217930), (4, 4608965), (5, 3687172), (10, 1843586), (20, 921793), (71, 259660), (142, 129830), (284, 64915), (355, 51932), (710, 25966), (1420, 12983)]