87778820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{258173}}^1$

素因数の和:258199

約数の個数: 24

約数和(自身を含む): 195179544

約数和(自身を除く): 107400724

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 258173, 516346, 1032692, 1290865, 2581730, 4388941, 5163460, 8777882, 17555764, 21944705, 43889410, 87778820]

約数ペア:

[(1, 87778820), (2, 43889410), (4, 21944705), (5, 17555764), (10, 8777882), (17, 5163460), (20, 4388941), (34, 2581730), (68, 1290865), (85, 1032692), (170, 516346), (340, 258173)]