90243820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{265423}}^1$

素因数の和:265449

約数の個数: 24

約数和(自身を含む): 200660544

約数和(自身を除く): 110416724

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 265423, 530846, 1061692, 1327115, 2654230, 4512191, 5308460, 9024382, 18048764, 22560955, 45121910, 90243820]

約数ペア:

[(1, 90243820), (2, 45121910), (4, 22560955), (5, 18048764), (10, 9024382), (17, 5308460), (20, 4512191), (34, 2654230), (68, 1327115), (85, 1061692), (170, 530846), (340, 265423)]