263641856

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 549427200

約数和(自身を除く): 285785344

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 139, 239, 248, 256, 278, 478, 496, 556, 956, 992, 1112, 1912, 1984, 2224, 3824, 3968, 4309, 4448, 7409, 7648, 7936, 8618, 8896, 14818, 15296, 17236, 17792, 29636, 30592, 33221, 34472, 35584, 59272, 61184, 66442, 68944, 118544, 132884, 137888, 237088, 265768, 275776, 474176, 531536, 551552, 948352, 1029851, 1063072, 1103104, 1896704, 2059702, 2126144, 4119404, 4252288, 8238808, 8504576, 16477616, 32955232, 65910464, 131820928, 263641856]

約数ペア:

[(1, 263641856), (2, 131820928), (4, 65910464), (8, 32955232), (16, 16477616), (31, 8504576), (32, 8238808), (62, 4252288), (64, 4119404), (124, 2126144), (128, 2059702), (139, 1896704), (239, 1103104), (248, 1063072), (256, 1029851), (278, 948352), (478, 551552), (496, 531536), (556, 474176), (956, 275776), (992, 265768), (1112, 237088), (1912, 137888), (1984, 132884), (2224, 118544), (3824, 68944), (3968, 66442), (4309, 61184), (4448, 59272), (7409, 35584), (7648, 34472), (7936, 33221), (8618, 30592), (8896, 29636), (14818, 17792), (15296, 17236)]