257001904

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{27271}}^1$

素因数の和:27329

約数の個数: 40

約数和(自身を含む): 541076480

約数和(自身を除く): 284074576

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 1178, 2356, 4712, 9424, 27271, 54542, 109084, 218168, 436336, 518149, 845401, 1036298, 1690802, 2072596, 3381604, 4145192, 6763208, 8290384, 13526416, 16062619, 32125238, 64250476, 128500952, 257001904]

約数ペア:

[(1, 257001904), (2, 128500952), (4, 64250476), (8, 32125238), (16, 16062619), (19, 13526416), (31, 8290384), (38, 6763208), (62, 4145192), (76, 3381604), (124, 2072596), (152, 1690802), (248, 1036298), (304, 845401), (496, 518149), (589, 436336), (1178, 218168), (2356, 109084), (4712, 54542), (9424, 27271)]