131820928

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{239}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 274176000

約数和(自身を除く): 142355072

約数列:

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

約数ペア:

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