28990884

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{9781}}^1$

素因数の和:9820

約数の個数: 48

約数和(自身を含む): 76690880

約数和(自身を除く): 47699996

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 494, 741, 988, 1482, 2964, 9781, 19562, 29343, 39124, 58686, 117372, 127153, 185839, 254306, 371678, 381459, 508612, 557517, 743356, 762918, 1115034, 1525836, 2230068, 2415907, 4831814, 7247721, 9663628, 14495442, 28990884]

約数ペア:

[(1, 28990884), (2, 14495442), (3, 9663628), (4, 7247721), (6, 4831814), (12, 2415907), (13, 2230068), (19, 1525836), (26, 1115034), (38, 762918), (39, 743356), (52, 557517), (57, 508612), (76, 381459), (78, 371678), (114, 254306), (156, 185839), (228, 127153), (247, 117372), (494, 58686), (741, 39124), (988, 29343), (1482, 19562), (2964, 9781)]