208053140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{611921}}^1$

素因数の和:611947

約数の個数: 24

約数和(自身を含む): 462613032

約数和(自身を除く): 254559892

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 611921, 1223842, 2447684, 3059605, 6119210, 10402657, 12238420, 20805314, 41610628, 52013285, 104026570, 208053140]

約数ペア:

[(1, 208053140), (2, 104026570), (4, 52013285), (5, 41610628), (10, 20805314), (17, 12238420), (20, 10402657), (34, 6119210), (68, 3059605), (85, 2447684), (170, 1223842), (340, 611921)]