251285008

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{38971}}^1$

素因数の和:39023

約数の個数: 40

約数和(自身を含む): 541243136

約数和(自身を除く): 289958128

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 38971, 77942, 155884, 311768, 506623, 623536, 1013246, 1208101, 2026492, 2416202, 4052984, 4832404, 8105968, 9664808, 15705313, 19329616, 31410626, 62821252, 125642504, 251285008]

約数ペア:

[(1, 251285008), (2, 125642504), (4, 62821252), (8, 31410626), (13, 19329616), (16, 15705313), (26, 9664808), (31, 8105968), (52, 4832404), (62, 4052984), (104, 2416202), (124, 2026492), (208, 1208101), (248, 1013246), (403, 623536), (496, 506623), (806, 311768), (1612, 155884), (3224, 77942), (6448, 38971)]