81450190

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{198659}}^1$

素因数の和:198707

約数の個数: 16

約数和(自身を含む): 150186960

約数和(自身を除く): 68736770

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 198659, 397318, 993295, 1986590, 8145019, 16290038, 40725095, 81450190]

約数ペア:

[(1, 81450190), (2, 40725095), (5, 16290038), (10, 8145019), (41, 1986590), (82, 993295), (205, 397318), (410, 198659)]