251575168

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4877}}^1$

素因数の和:4935

約数の個数: 64

約数和(自身を含む): 557262720

約数和(自身を除く): 305687552

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 403, 416, 496, 806, 832, 992, 1612, 1664, 1984, 3224, 3968, 4877, 6448, 9754, 12896, 19508, 25792, 39016, 51584, 63401, 78032, 126802, 151187, 156064, 253604, 302374, 312128, 507208, 604748, 624256, 1014416, 1209496, 1965431, 2028832, 2418992, 3930862, 4057664, 4837984, 7861724, 8115328, 9675968, 15723448, 19351936, 31446896, 62893792, 125787584, 251575168]

約数ペア:

[(1, 251575168), (2, 125787584), (4, 62893792), (8, 31446896), (13, 19351936), (16, 15723448), (26, 9675968), (31, 8115328), (32, 7861724), (52, 4837984), (62, 4057664), (64, 3930862), (104, 2418992), (124, 2028832), (128, 1965431), (208, 1209496), (248, 1014416), (403, 624256), (416, 604748), (496, 507208), (806, 312128), (832, 302374), (992, 253604), (1612, 156064), (1664, 151187), (1984, 126802), (3224, 78032), (3968, 63401), (4877, 51584), (6448, 39016), (9754, 25792), (12896, 19508)]