257926508

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{2551}}^1$

素因数の和:2742

約数の個数: 48

約数和(自身を含む): 541922304

約数和(自身を除く): 283995796

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 157, 161, 314, 322, 628, 644, 1099, 2198, 2551, 3611, 4396, 5102, 7222, 10204, 14444, 17857, 25277, 35714, 50554, 58673, 71428, 101108, 117346, 234692, 400507, 410711, 801014, 821422, 1602028, 1642844, 2803549, 5607098, 9211661, 11214196, 18423322, 36846644, 64481627, 128963254, 257926508]

約数ペア:

[(1, 257926508), (2, 128963254), (4, 64481627), (7, 36846644), (14, 18423322), (23, 11214196), (28, 9211661), (46, 5607098), (92, 2803549), (157, 1642844), (161, 1602028), (314, 821422), (322, 801014), (628, 410711), (644, 400507), (1099, 234692), (2198, 117346), (2551, 101108), (3611, 71428), (4396, 58673), (5102, 50554), (7222, 35714), (10204, 25277), (14444, 17857)]