28543928

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:364

約数の個数: 64

約数和(自身を含む): 65184000

約数和(自身を除く): 36640072

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 139, 152, 193, 266, 278, 386, 532, 556, 772, 973, 1064, 1112, 1351, 1544, 1946, 2641, 2702, 3667, 3892, 5282, 5404, 7334, 7784, 10564, 10808, 14668, 18487, 21128, 25669, 26827, 29336, 36974, 51338, 53654, 73948, 102676, 107308, 147896, 187789, 205352, 214616, 375578, 509713, 751156, 1019426, 1502312, 2038852, 3567991, 4077704, 7135982, 14271964, 28543928]

約数ペア:

[(1, 28543928), (2, 14271964), (4, 7135982), (7, 4077704), (8, 3567991), (14, 2038852), (19, 1502312), (28, 1019426), (38, 751156), (56, 509713), (76, 375578), (133, 214616), (139, 205352), (152, 187789), (193, 147896), (266, 107308), (278, 102676), (386, 73948), (532, 53654), (556, 51338), (772, 36974), (973, 29336), (1064, 26827), (1112, 25669), (1351, 21128), (1544, 18487), (1946, 14668), (2641, 10808), (2702, 10564), (3667, 7784), (3892, 7334), (5282, 5404)]