257051008

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{64781}}^1$

素因数の和:64826

約数の個数: 32

約数和(自身を含む): 528621120

約数和(自身を除く): 271570112

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 64781, 129562, 259124, 518248, 1036496, 2008211, 2072992, 4016422, 4145984, 8032844, 8291968, 16065688, 32131376, 64262752, 128525504, 257051008]

約数ペア:

[(1, 257051008), (2, 128525504), (4, 64262752), (8, 32131376), (16, 16065688), (31, 8291968), (32, 8032844), (62, 4145984), (64, 4016422), (124, 2072992), (128, 2008211), (248, 1036496), (496, 518248), (992, 259124), (1984, 129562), (3968, 64781)]