28485856

素因数分解:

$2^5\times 7^2\times {\mathrm{37}}^1\times {\mathrm{491}}^1$

素因数の和:552

約数の個数: 72

約数和(自身を含む): 67137336

約数和(自身を除く): 38651480

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 49, 56, 74, 98, 112, 148, 196, 224, 259, 296, 392, 491, 518, 592, 784, 982, 1036, 1184, 1568, 1813, 1964, 2072, 3437, 3626, 3928, 4144, 6874, 7252, 7856, 8288, 13748, 14504, 15712, 18167, 24059, 27496, 29008, 36334, 48118, 54992, 58016, 72668, 96236, 109984, 127169, 145336, 192472, 254338, 290672, 384944, 508676, 581344, 769888, 890183, 1017352, 1780366, 2034704, 3560732, 4069408, 7121464, 14242928, 28485856]

約数ペア:

[(1, 28485856), (2, 14242928), (4, 7121464), (7, 4069408), (8, 3560732), (14, 2034704), (16, 1780366), (28, 1017352), (32, 890183), (37, 769888), (49, 581344), (56, 508676), (74, 384944), (98, 290672), (112, 254338), (148, 192472), (196, 145336), (224, 127169), (259, 109984), (296, 96236), (392, 72668), (491, 58016), (518, 54992), (592, 48118), (784, 36334), (982, 29008), (1036, 27496), (1184, 24059), (1568, 18167), (1813, 15712), (1964, 14504), (2072, 13748), (3437, 8288), (3626, 7856), (3928, 7252), (4144, 6874)]