15127890688

素因数分解:

$2^8\times {\mathrm{61}}^1\times {\mathrm{491}}^1\times {\mathrm{1973}}^1$

素因数の和:2541

約数の個数: 72

約数和(自身を含む): 30769811856

約数和(自身を除く): 15641921168

約数列:

[1, 2, 4, 8, 16, 32, 61, 64, 122, 128, 244, 256, 488, 491, 976, 982, 1952, 1964, 1973, 3904, 3928, 3946, 7808, 7856, 7892, 15616, 15712, 15784, 29951, 31424, 31568, 59902, 62848, 63136, 119804, 120353, 125696, 126272, 239608, 240706, 252544, 479216, 481412, 505088, 958432, 962824, 968743, 1916864, 1925648, 1937486, 3833728, 3851296, 3874972, 7667456, 7702592, 7749944, 15405184, 15499888, 30810368, 30999776, 59093323, 61999552, 118186646, 123999104, 236373292, 247998208, 472746584, 945493168, 1890986336, 3781972672, 7563945344, 15127890688]

約数ペア:

[(1, 15127890688), (2, 7563945344), (4, 3781972672), (8, 1890986336), (16, 945493168), (32, 472746584), (61, 247998208), (64, 236373292), (122, 123999104), (128, 118186646), (244, 61999552), (256, 59093323), (488, 30999776), (491, 30810368), (976, 15499888), (982, 15405184), (1952, 7749944), (1964, 7702592), (1973, 7667456), (3904, 3874972), (3928, 3851296), (3946, 3833728), (7808, 1937486), (7856, 1925648), (7892, 1916864), (15616, 968743), (15712, 962824), (15784, 958432), (29951, 505088), (31424, 481412), (31568, 479216), (59902, 252544), (62848, 240706), (63136, 239608), (119804, 126272), (120353, 125696)]