28365428

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{523}}^1$

素因数の和:696

約数の個数: 48

約数和(自身を含む): 61622400

約数和(自身を除く): 33256972

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 149, 182, 298, 364, 523, 596, 1043, 1046, 1937, 2086, 2092, 3661, 3874, 4172, 6799, 7322, 7748, 13559, 13598, 14644, 27118, 27196, 47593, 54236, 77927, 95186, 155854, 190372, 311708, 545489, 1013051, 1090978, 2026102, 2181956, 4052204, 7091357, 14182714, 28365428]

約数ペア:

[(1, 28365428), (2, 14182714), (4, 7091357), (7, 4052204), (13, 2181956), (14, 2026102), (26, 1090978), (28, 1013051), (52, 545489), (91, 311708), (149, 190372), (182, 155854), (298, 95186), (364, 77927), (523, 54236), (596, 47593), (1043, 27196), (1046, 27118), (1937, 14644), (2086, 13598), (2092, 13559), (3661, 7748), (3874, 7322), (4172, 6799)]