27720784

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:348

約数の個数: 80

約数和(自身を含む): 67217920

約数和(自身を除く): 39497136

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 79, 91, 104, 112, 158, 182, 208, 241, 316, 364, 482, 553, 632, 728, 964, 1027, 1106, 1264, 1456, 1687, 1928, 2054, 2212, 3133, 3374, 3856, 4108, 4424, 6266, 6748, 7189, 8216, 8848, 12532, 13496, 14378, 16432, 19039, 21931, 25064, 26992, 28756, 38078, 43862, 50128, 57512, 76156, 87724, 115024, 133273, 152312, 175448, 247507, 266546, 304624, 350896, 495014, 533092, 990028, 1066184, 1732549, 1980056, 2132368, 3465098, 3960112, 6930196, 13860392, 27720784]

約数ペア:

[(1, 27720784), (2, 13860392), (4, 6930196), (7, 3960112), (8, 3465098), (13, 2132368), (14, 1980056), (16, 1732549), (26, 1066184), (28, 990028), (52, 533092), (56, 495014), (79, 350896), (91, 304624), (104, 266546), (112, 247507), (158, 175448), (182, 152312), (208, 133273), (241, 115024), (316, 87724), (364, 76156), (482, 57512), (553, 50128), (632, 43862), (728, 38078), (964, 28756), (1027, 26992), (1106, 25064), (1264, 21931), (1456, 19039), (1687, 16432), (1928, 14378), (2054, 13496), (2212, 12532), (3133, 8848), (3374, 8216), (3856, 7189), (4108, 6748), (4424, 6266)]