18280390

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{541}}^1$

素因数の和:688

約数の個数: 32

約数和(自身を含む): 34341120

約数和(自身を除く): 16060730

約数列:

[1, 2, 5, 10, 31, 62, 109, 155, 218, 310, 541, 545, 1082, 1090, 2705, 3379, 5410, 6758, 16771, 16895, 33542, 33790, 58969, 83855, 117938, 167710, 294845, 589690, 1828039, 3656078, 9140195, 18280390]

約数ペア:

[(1, 18280390), (2, 9140195), (5, 3656078), (10, 1828039), (31, 589690), (62, 294845), (109, 167710), (155, 117938), (218, 83855), (310, 58969), (541, 33790), (545, 33542), (1082, 16895), (1090, 16771), (2705, 6758), (3379, 5410)]